diff --git a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref
index bd57f57b25343ee38a76e0a1d570acaf34d70d45..528f208c461a42e1ceb3c6628ff6fcaab8d5768e 100644
--- a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref
+++ b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref
@@ -2329,6 +2329,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        100 |       58.2 | 37.184     |      0.934 |    0.86084 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        100 |      60.69 | 38.849     |    0.91963 |    0.78732 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        620 |    -2.0161 | 808.83     |  -0.024261 |   -0.53055 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        635 |     27.461 | 794.04     |  -0.050718 |   -0.41254 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3002 |    -6.6706 | 727.94     | -0.0067181 |    0.15091 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3067 |     27.213 | 707.45     |  -0.036823 |    0.18272 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5644 |    -2.4211 | 723.76     |  0.0070517 |   0.022077 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     8.0359 | 718.54     |   0.009607 | -0.0031264 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       5452 | 0.00018188 | 0.0012935  |   -0.28576 |     10.784 |
@@ -2360,14 +2368,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4819 |     0.9879 | 0.25274    |  -0.060273 |    0.23726 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4819 |   -0.92016 | 1.3708     |    0.49769 |    0.95916 |
  | kickZ                                         | "Z position of magnet kick"                   |       3395 |     5180.9 | 49.196     |    -1.7715 |     4.7206 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      14084 | 0.00015621 | 0.095879   |   0.010264 |    0.58922 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      14084 | -0.0017183 | 1.0822     | -0.0022745 |    0.13557 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      14507 |     5.4916 | 3.4437     |-0.00027065 |    -1.2137 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4914 |     1.4906 | 1.1267     |    0.02457 |    -1.3792 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        620 |    -2.1774 | 809.08     |  -0.021546 |   -0.53375 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        635 |     28.134 | 794.92     |  -0.051091 |   -0.41469 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       5044 |-0.00019826 | 0.043441   |   0.036898 |     3.8249 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       5044 | -0.0067541 | 1.1748     |  0.0022411 |    0.51654 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1255 |     1.0818 | 0.68576    |     1.4183 |     2.9597 |
@@ -2422,8 +2428,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      21304 |     1.4996 | 1.1161     |-0.00045959 |    -1.3557 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28642 |      17.18 | 4.8087     |   -0.21476 |   -0.82525 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26584 |     17.467 | 4.6415     |    -0.2599 |   -0.71968 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3002 |    -6.6256 | 728.01     | -0.0077477 |     0.1562 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3067 |     27.139 | 707.74     |  -0.034212 |    0.18035 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      21052 |  0.0027399 | 0.052683   |   -0.05109 |     2.0088 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      21052 |    0.09392 | 1.4096     |   0.025052 |   0.041141 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54183 | 2.1372e-05 | 0.013600   |  -0.011136 |   -0.12993 |
@@ -2485,8 +2489,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     124400 | 1.2219e-05 | 0.094256   |  0.0034894 |    0.52924 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     124400 | 0.00028698 | 1.0622     |  0.0052918 |  -0.044654 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127593 |     5.5094 | 3.4492     | -0.0062537 |    -1.2159 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5644 |    -2.0358 | 724.63     |   0.012268 |   0.040745 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     7.6753 | 719.41     |  0.0061858 |   0.010634 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      11206 |     1.1178 | 0.67674    |     1.0516 |     1.2221 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      11206 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      11206 |     1.1167 | 0.67660    |     1.0464 |      1.219 |
@@ -3151,9 +3153,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20800 |     88.925 | 53.295     |     1.2368 |     3.5175 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        100 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        100 |      227.5 | 123.23     |    0.57862 |    0.19625 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        100 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      54915 |     16.487 | 5.2117     |   -0.16625 |   -0.85979 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      51313 |     16.692 | 5.0887     |    -0.1878 |   -0.80031 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      14379 |       0.08 | 0.0000     |          0 |          0 |
@@ -3516,6 +3525,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5364 |   0.092408 | 0.10670    |     1.1935 |    0.31424 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6055 |      10935 | 11281.     |     2.8488 |     11.701 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5819 |     581.01 | 517.15     |     3.1039 |       15.8 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1255 |     5409.1 | 1817.7     |    0.62094 |    0.28656 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6069 |     5328.2 | 1883.3     |    0.58906 |    0.15699 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      11206 |     6705.8 | 2303.4     |  -0.091579 |    -1.1559 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       3185 |     5206.4 | 1770.9     |    0.54119 |    0.24828 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      13056 |     4973.8 | 1823.5     |    0.58473 |    0.27973 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       3298 |  0.0037238 | 0.079895   |   0.058751 |   -0.46408 |
@@ -3667,5 +3683,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18333 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9773 | 0.60000    | -0.0076272 |    -1.9999 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.4077 | 1.5708     | -0.0076272 |    -1.9999 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.armv8.1_a b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.armv8.1_a
index 334fe2740c9b31cd8d0a4d1220449282ec47488d..0d1d3d1c2a3524929c54e83837e34cef815802b0 100644
--- a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.armv8.1_a
@@ -2329,6 +2329,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        100 |      58.24 | 37.235     |    0.93674 |     0.8597 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        100 |      60.73 | 38.901     |    0.92311 |    0.79001 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        620 |    -2.0161 | 808.83     |  -0.024261 |   -0.53055 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        634 |     25.394 | 792.96     |  -0.050301 |    -0.4066 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3003 |    -5.8899 | 727.92     | -0.0086149 |     0.1511 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3070 |     27.622 | 707.94     |  -0.035421 |    0.17759 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5643 |    -2.5833 | 723.73     |  0.0074623 |   0.022805 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     8.0359 | 718.54     |   0.009607 | -0.0031264 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       5457 | 0.00018522 | 0.0012977  |   -0.24822 |     10.778 |
@@ -2360,14 +2368,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4822 |    0.98792 | 0.25278    |  -0.060206 |    0.23565 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4822 |   -0.92086 | 1.3713     |    0.49636 |    0.95553 |
  | kickZ                                         | "Z position of magnet kick"                   |       3395 |     5180.9 | 49.235     |    -1.7705 |     4.7049 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      14072 | 0.00015065 | 0.095881   |   0.010431 |    0.59026 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      14072 | -0.0017482 | 1.0821     | -0.0021735 |    0.13627 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      14495 |     5.4915 | 3.4437     |-0.00027091 |    -1.2137 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4910 |     1.4906 | 1.1267     |    0.02459 |    -1.3792 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        620 |    -2.1774 | 809.08     |  -0.021546 |   -0.53375 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        634 |     26.073 | 793.84     |  -0.050626 |   -0.40876 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       5040 |-0.00020238 | 0.043457   |   0.037166 |       3.82 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       5040 |  -0.006839 | 1.1752     |  0.0024449 |    0.51364 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1254 |     1.0816 | 0.68599    |     1.4189 |     2.9582 |
@@ -2422,8 +2428,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      21321 |     1.4996 | 1.1162     | -0.0005344 |    -1.3557 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28643 |     17.182 | 4.8082     |   -0.21499 |   -0.82507 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26600 |     17.464 | 4.6436     |   -0.25999 |   -0.72019 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3003 |    -5.8292 | 727.99     | -0.0096487 |    0.15636 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3070 |     27.547 | 708.23     |  -0.032843 |    0.17523 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      21069 |  0.0027315 | 0.052669   |   -0.05176 |     2.0106 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      21069 |   0.093619 | 1.4096     |   0.024364 |   0.041909 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54205 | 1.8781e-05 | 0.013600   |  -0.011319 |   -0.12919 |
@@ -2485,8 +2489,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     124393 | 1.2059e-05 | 0.094243   |  0.0035053 |    0.52939 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     124393 |   0.000246 | 1.0620     |  0.0051036 |  -0.044634 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127584 |     5.5092 | 3.4493     |  -0.006202 |    -1.2159 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5643 |    -2.2036 | 724.60     |   0.012702 |   0.041509 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     7.6753 | 719.41     |  0.0061858 |   0.010634 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      11205 |     1.1179 | 0.67719    |     1.0551 |     1.2373 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      11205 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      11205 |     1.1169 | 0.67703    |     1.0497 |     1.2332 |
@@ -3151,9 +3153,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20800 |     88.925 | 53.295     |     1.2368 |     3.5175 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        100 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        100 |      227.5 | 123.23     |    0.57862 |    0.19625 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        100 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      54922 |     16.486 | 5.2116     |   -0.16607 |   -0.85989 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      51303 |     16.693 | 5.0888     |    -0.1881 |   -0.80021 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      14380 |       0.08 | 9.3132e-10 |-1.9573e+08 |-5.2504e+13 |
@@ -3516,6 +3525,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5364 |   0.092438 | 0.10674    |     1.1941 |    0.31559 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6059 |      10929 | 11279.     |     2.8498 |     11.708 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5821 |     580.84 | 517.08     |     3.1048 |     15.807 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1254 |     5405.2 | 1815.3     |    0.62359 |    0.30082 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6073 |     5333.3 | 1886.6     |    0.58252 |    0.13289 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      11205 |     6704.6 | 2303.5     |  -0.089888 |    -1.1569 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       3186 |     5209.5 | 1772.5     |    0.53992 |     0.2409 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      13057 |     4974.5 | 1824.4     |    0.58448 |    0.27651 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       3299 |  0.0036648 | 0.079911   |   0.059546 |   -0.46563 |
@@ -3667,5 +3683,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18333 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9773 | 0.60000    | -0.0075449 |    -1.9999 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.4078 | 1.5708     | -0.0075449 |    -1.9999 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.detdesc b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.detdesc
index fe16d99cb9e9f96e443200961296d4c3033f342b..c879edaba2334e9ba34b4dbe0f1b963395bd28ae 100644
--- a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.detdesc
+++ b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.detdesc
@@ -2396,6 +2396,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        100 |      59.91 | 37.966     |    0.90615 |    0.76112 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        100 |     60.939 | 37.142     |    0.67649 |   -0.07087 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        541 |     5.8919 | 841.94     |  0.0050398 |   -0.74039 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        546 |      39.56 | 833.63     |  -0.038558 |   -0.66123 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3101 |     -8.598 | 721.93     |  -0.022351 |    0.19118 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3135 |     29.023 | 696.37     |  -0.042174 |    0.25837 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5644 |    -2.4211 | 723.76     |  0.0070517 |   0.022077 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     8.0359 | 718.54     |   0.009607 | -0.0031264 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       5734 | 2.6939e-05 | 0.0012745  |   -0.33087 |      10.88 |
@@ -2427,14 +2435,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       5066 |    0.98859 | 0.20001    |   -0.19292 |     2.5048 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       5066 |   0.066544 | 1.2422     |  0.0040315 |     1.1873 |
  | kickZ                                         | "Z position of magnet kick"                   |       3535 |     5183.3 | 43.357     |    -2.0454 |     6.5623 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      12206 | 0.00018352 | 0.096091   |   0.030308 |    0.60294 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      12206 | -0.0026301 | 1.0821     |    0.01153 |    0.13157 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12537 |     5.4928 | 3.4421     |-0.00092299 |    -1.2132 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4249 |     1.4912 | 1.1271     |   0.024909 |    -1.3801 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        541 |      5.573 | 842.05     |  0.0066116 |   -0.74105 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        546 |     41.099 | 834.44     |  -0.040274 |   -0.66226 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4309 |-0.00016477 | 0.046334   |   0.070023 |      2.963 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4309 |  -0.010853 | 1.1914     |  -0.046723 |    0.31747 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1087 |     1.0673 | 0.67751    |      1.468 |     3.2633 |
@@ -2489,8 +2495,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      22459 |     1.4977 | 1.1177     |  0.0022046 |    -1.3592 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      29285 |     17.265 | 4.8087     |   -0.23747 |   -0.81549 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      27199 |     17.545 | 4.6436     |    -0.2761 |   -0.71775 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3101 |    -8.5472 | 722.06     |  -0.022828 |    0.19585 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3135 |     28.847 | 696.64     |  -0.039181 |    0.25666 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      22548 | 0.00047454 | 0.048299   |   0.010216 |     4.2438 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      22548 |  0.0070753 | 1.2175     |  -0.015042 |    0.41521 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      55592 |-2.5112e-05 | 0.013629   |  -0.010072 |    -0.1118 |
@@ -2552,8 +2556,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     124400 | 1.2219e-05 | 0.094256   |  0.0034894 |    0.52924 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     124400 | 0.00028698 | 1.0622     |  0.0052918 |  -0.044654 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127593 |     5.5094 | 3.4492     | -0.0062537 |    -1.2159 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5644 |    -2.0358 | 724.63     |   0.012268 |   0.040745 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     7.6753 | 719.41     |  0.0061858 |   0.010634 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      11206 |     1.1178 | 0.67674    |     1.0516 |     1.2221 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      11206 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      11206 |     1.1167 | 0.67660    |     1.0464 |      1.219 |
@@ -3266,9 +3268,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20800 |     88.925 | 53.295     |     1.2368 |     3.5175 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        100 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        100 |      226.7 | 122.52     |    0.59028 |    0.25319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        100 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      54921 |     16.488 | 5.2069     |    -0.1622 |   -0.86871 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      51270 |     16.696 | 5.0853     |   -0.18696 |   -0.80267 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      14368 |       0.08 | 0.0000     |          0 |          0 |
@@ -3631,6 +3640,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5790 |   0.051738 | 0.085565   |     2.2464 |     4.4132 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6221 |      11719 | 12664.     |     2.7019 |      9.428 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5987 |     591.63 | 522.77     |     2.9593 |     14.346 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1087 |       5418 | 1864.8     |    0.68508 |     0.2463 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6236 |     5430.1 | 1925.4     |    0.57168 |   0.042784 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      11206 |     6705.8 | 2303.4     |  -0.091579 |    -1.1559 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       3333 |     5180.8 | 1811.9     |    0.55356 |    0.21382 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      13047 |     4976.7 | 1833.0     |    0.57761 |    0.22277 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       3565 |  -0.018711 | 0.11512    |   0.031942 |    -1.2974 |
@@ -3782,5 +3798,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10877 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5862 | 0.45696    |     1.7018 |    0.89625 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4317 | 1.1963     |     1.7018 |    0.89625 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-detdesc-opt
index a4cc6d5a5732987bc87feb550a56431fd46aec05..dc8abf39ef5531b4eeb532ecad65d40cf314f91c 100644
--- a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -2395,6 +2395,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        100 |      59.97 | 38.119     |    0.91704 |    0.80989 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        100 |      60.99 | 37.218     |    0.67651 |  -0.071716 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        539 |     6.7486 | 839.48     |   0.004749 |   -0.72733 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        546 |     41.026 | 835.51     |  -0.034481 |   -0.66509 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3103 |    -8.8584 | 722.30     |  -0.024979 |    0.18096 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3140 |     28.432 | 696.82     |  -0.039039 |    0.25353 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5643 |     -2.889 | 723.92     |    0.00764 |   0.021543 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     8.0359 | 718.54     |   0.009607 | -0.0031264 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       5742 | 2.9274e-05 | 0.0012743  |   -0.30882 |      10.88 |
@@ -2426,14 +2434,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       5074 |    0.98847 | 0.19986    |   -0.19245 |     2.5062 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       5074 |    0.06863 | 1.2432     |  0.0067377 |     1.1903 |
  | kickZ                                         | "Z position of magnet kick"                   |       3529 |     5183.3 | 43.328     |    -2.0495 |      6.592 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      12186 | 0.00019038 | 0.096087   |   0.030266 |    0.60379 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      12186 |  -0.002421 | 1.0820     |   0.010856 |    0.13096 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12517 |     5.4936 | 3.4420     | -0.0012738 |    -1.2131 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4241 |     1.4912 | 1.1271     |   0.024955 |    -1.3801 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        539 |     6.4286 | 839.56     |  0.0062544 |   -0.72802 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        546 |     42.582 | 836.33     |  -0.036214 |   -0.66622 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4301 |-0.00016508 | 0.046301   |    0.07147 |     2.9689 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4301 |  -0.011013 | 1.1906     |  -0.047446 |    0.31891 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1085 |      1.067 | 0.67737    |     1.4739 |     3.2798 |
@@ -2488,8 +2494,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      22489 |     1.4978 | 1.1178     |  0.0020748 |    -1.3594 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      29334 |      17.26 | 4.8097     |   -0.23883 |   -0.80713 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      27228 |     17.542 | 4.6432     |   -0.27584 |   -0.71695 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3103 |    -8.8028 | 722.44     |  -0.025383 |    0.18579 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3140 |     28.261 | 697.06     |  -0.036033 |    0.25202 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      22580 | 0.00045616 | 0.048254   |  0.0017964 |     4.2574 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      22580 |  0.0067926 | 1.2169     |  -0.018263 |    0.41711 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      55671 |-3.0501e-05 | 0.013631   |  -0.012969 |  -0.099709 |
@@ -2551,8 +2555,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     124394 | 1.1898e-05 | 0.094252   |  0.0034024 |    0.52947 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     124394 | 0.00024037 | 1.0621     |  0.0050934 |  -0.044559 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127586 |     5.5092 | 3.4493     |  -0.006195 |    -1.2159 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5643 |    -2.5066 | 724.79     |   0.012886 |   0.040221 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     7.6753 | 719.41     |  0.0061858 |   0.010634 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      11205 |     1.1181 | 0.67734    |     1.0547 |     1.2344 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      11205 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      11205 |      1.117 | 0.67719    |     1.0493 |     1.2301 |
@@ -3265,9 +3267,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20800 |     88.925 | 53.295     |     1.2368 |     3.5175 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        100 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        100 |      226.9 | 122.41     |    0.58976 |    0.23402 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        100 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      55094 |     16.483 | 5.2108     |   -0.16628 |     -0.856 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      51402 |     16.691 | 5.0835     |   -0.18382 |   -0.80917 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      14407 |       0.08 | 0.0000     |          0 |          0 |
@@ -3630,6 +3639,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5792 |    0.05166 | 0.085385   |      2.248 |      4.431 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6228 |      11702 | 12659.     |     2.7045 |      9.446 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5993 |     590.95 | 522.50     |     2.9629 |      14.38 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1085 |     5417.5 | 1856.9     |    0.68929 |    0.26583 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6243 |       5434 | 1933.0     |    0.56691 |   0.013373 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      11205 |     6705.6 | 2304.0     |   -0.09099 |     -1.157 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       3338 |     5181.4 | 1813.8     |    0.55387 |    0.20536 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      13058 |       4988 | 1836.7     |    0.57368 |    0.22604 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       3561 |  -0.019648 | 0.11503    |   0.031738 |     -1.312 |
@@ -3781,5 +3797,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10877 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5862 | 0.45695    |     1.7019 |    0.89641 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4317 | 1.1963     |     1.7019 |    0.89641 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-opt b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-opt
index 12e4539870718042f3866cd6acf1588c79f07583..cb7e06311c83cbeffa6398e270d2d2f4cc45d589 100644
--- a/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/Hlt2Conf/tests/refs/hlt2_reco_2024_with_mcchecking.ref.x86_64_v3-opt
@@ -2329,6 +2329,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        100 |      58.33 | 37.357     |    0.94446 |    0.91259 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        100 |     59.394 | 36.523     |     0.6801 |    -0.1049 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        619 |    -4.0186 | 807.95     |  -0.022778 |   -0.52493 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        631 |     28.348 | 794.92     |   -0.04817 |   -0.40635 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3006 |    -6.4122 | 728.38     |  -0.012165 |    0.13991 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3076 |     26.642 | 707.98     |  -0.034856 |    0.17514 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5643 |     -2.889 | 723.92     |    0.00764 |   0.021543 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     8.0359 | 718.54     |   0.009607 | -0.0031264 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       5467 | 0.00018205 | 0.0012982  |   -0.25224 |     10.753 |
@@ -2360,14 +2368,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4832 |    0.98791 | 0.25285    |  -0.060573 |    0.23597 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4832 |   -0.92026 | 1.3713     |     0.4967 |    0.95629 |
  | kickZ                                         | "Z position of magnet kick"                   |       3394 |       5181 | 49.004     |     -1.755 |     4.6436 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      14027 | 0.00015256 | 0.095848   |   0.010823 |    0.59423 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      14027 | -0.0016753 | 1.0818     | -0.0022583 |    0.13894 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      14449 |     5.4919 | 3.4436     | -0.0004954 |    -1.2136 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4894 |     1.4906 | 1.1267     |    0.02467 |    -1.3792 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        619 |    -4.1922 | 808.17     |  -0.020111 |   -0.52812 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        631 |     29.073 | 795.83     |  -0.048592 |   -0.40869 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       5024 |-0.00019108 | 0.043481   |   0.037185 |     3.8228 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       5024 | -0.0069805 | 1.1749     |  0.0021968 |    0.51514 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1250 |     1.0806 | 0.68638    |     1.4255 |     2.9692 |
@@ -2422,8 +2428,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      21360 |     1.4994 | 1.1161     |-0.00020726 |    -1.3556 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28724 |     17.179 | 4.8087     |   -0.21404 |   -0.82609 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26627 |     17.464 | 4.6432     |   -0.25982 |   -0.71964 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3006 |    -6.3673 | 728.46     |  -0.013109 |    0.14538 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3076 |     26.557 | 708.27     |   -0.03234 |    0.17294 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      21106 |   0.002731 | 0.052600   |   -0.05058 |     2.0022 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      21106 |   0.093612 | 1.4094     |   0.027578 |   0.042131 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54299 | 1.7201e-05 | 0.013614   |  -0.016453 |  -0.091517 |
@@ -2485,8 +2489,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     124394 | 1.1898e-05 | 0.094252   |  0.0034024 |    0.52947 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     124394 | 0.00024037 | 1.0621     |  0.0050934 |  -0.044559 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127586 |     5.5092 | 3.4493     |  -0.006195 |    -1.2159 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5643 |    -2.5066 | 724.79     |   0.012886 |   0.040221 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5562 |     7.6753 | 719.41     |  0.0061858 |   0.010634 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      11205 |     1.1181 | 0.67734    |     1.0547 |     1.2344 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      11205 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      11205 |      1.117 | 0.67719    |     1.0493 |     1.2301 |
@@ -3153,9 +3155,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20800 |     88.925 | 53.295     |     1.2368 |     3.5175 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        100 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        100 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        100 |      228.1 | 123.96     |    0.60584 |    0.27686 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        100 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        100 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      55119 |     16.481 | 5.2139     |    -0.1682 |   -0.85125 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      51411 |     16.691 | 5.0865     |   -0.18639 |   -0.80369 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      14419 |       0.08 | 0.0000     |          0 |          0 |
@@ -3518,6 +3527,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5370 |   0.092519 | 0.10684    |     1.1934 |    0.31152 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6068 |      10917 | 11274.     |     2.8507 |     11.719 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5830 |     579.93 | 516.66     |     3.1099 |     15.856 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1250 |       5406 | 1809.9     |    0.62256 |    0.31381 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6082 |     5329.3 | 1889.9     |    0.58563 |    0.12851 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      11205 |     6705.6 | 2304.0     |   -0.09099 |     -1.157 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       3192 |     5212.6 | 1772.7     |     0.5358 |    0.23008 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      13070 |     4998.6 | 1839.0     |      0.578 |    0.24775 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       3298 |  0.0040547 | 0.079585   |   0.068692 |   -0.46539 |
@@ -3669,5 +3685,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18333 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9773 | 0.60000    | -0.0075452 |    -1.9999 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.4078 | 1.5708     | -0.0075452 |    -1.9999 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref
index 3ab81b21ef4072243e3ac9caa7bbe3c608fc60f5..56eebffc0a14e121d48d076b6aa1bdb55b8981d8 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref
@@ -2665,6 +2665,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     12.573 | 7.7429     |    0.45586 |   -0.56241 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     13.944 | 8.8067     |    0.52075 |   -0.44939 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |       1637 |    -4.6045 | 646.44     |   0.045815 |    0.51816 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |       1686 |     26.364 | 631.39     |   0.017163 |    0.62268 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |        169 |    -27.589 | 541.66     |    0.17759 |     2.9944 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        185 |    -28.581 | 582.68     |   -0.24882 |     3.1373 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       2219 |   -0.73264 | 801.75     |  0.0069969 |   -0.47293 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2227 |    -3.3805 | 800.42     |   0.029801 |   -0.54797 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |        114 | 0.00021228 | 0.00039116 |   -0.85195 |     2.8822 |
@@ -2696,14 +2704,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |         89 |    0.99298 | 0.10007    |    0.18967 |     1.1621 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |         89 |    0.63904 | 1.8045     |   -0.30664 |   -0.16565 |
  | kickZ                                         | "Z position of magnet kick"                   |        251 |     5114.9 | 76.599     |    0.18005 |  -0.083003 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      37228 |-8.8106e-05 | 0.091851   | -0.0042892 |  -0.011019 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      37228 | -0.0014505 | 1.1247     | -0.0026953 |   -0.20357 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      38658 |     5.4952 | 3.4486     | 0.00029857 |    -1.2148 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |      13246 |     1.4989 | 1.1192     |  0.0032909 |    -1.3626 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |       1637 |    -4.5724 | 646.30     |    0.04655 |    0.51896 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |       1686 |     26.655 | 631.53     |   0.021267 |    0.61007 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |      12624 | 5.2281e-05 | 0.049002   |  0.0093656 |     1.0734 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |      12624 |  0.0019962 | 1.5473     |  -0.015891 |   -0.20663 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       3323 |     1.0173 | 0.61953    |     1.2601 |     2.2725 |
@@ -2758,8 +2764,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |        453 |     1.4945 | 1.1170     |   0.004329 |    -1.3577 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |       1043 |     18.544 | 5.3866     |   -0.59109 |   -0.88424 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |       1125 |      19.19 | 5.1766     |   -0.75159 |   -0.65709 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |        169 |    -28.136 | 542.89     |    0.17636 |     2.9805 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        185 |    -30.081 | 583.38     |   -0.24619 |     3.1707 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |        433 |   0.022933 | 0.069488   | -0.0042456 |   -0.24002 |
  | Long/UTresidualPull                           | "UT residual pull"                            |        433 |    0.50972 | 1.6347     |   -0.16172 |   -0.50577 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |       1916 |-0.00036326 | 0.019481   |   0.076042 |   -0.26105 |
@@ -2821,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      48621 |-7.5276e-05 | 0.093531   | -0.0044515 |   -0.04966 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      48621 |-0.00065817 | 1.1388     |-2.4163e-05 |   -0.23871 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      50601 |     5.5124 | 3.4441     | -0.0073773 |     -1.212 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       2219 |    0.54754 | 803.72     |   0.016454 |   -0.44155 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2227 |     -4.304 | 801.99     |   0.022122 |   -0.52405 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       4446 |     1.3234 | 0.75907    |    0.91708 |    0.89336 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       4446 |     1.3254 | 0.77482    |     1.0753 |     2.0708 |
  | Ttrack/eta                                    | "eta"                                         |       4446 |     2.1679 | 0.77102    |    0.75554 |  0.0012826 |
@@ -3117,9 +3119,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | PV-beamline delta y                           | "PV-beamline delta y"                         |        403 |-0.00060794 | 0.028237   |  -0.025679 |    0.82953 |
  | track IP X                                    | "track IP X (biased)"                         |          1 |      -0.07 | 0.0000     |          0 |          0 |
  | track IP Y                                    | "track IP Y (biased)"                         |          1 |       0.01 | 0.0000     |          0 |          0 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42522 |     16.452 | 5.1928     |   -0.14905 |   -0.87484 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11123 |       0.08 | 0.0000     |          0 |          0 |
@@ -3633,6 +3642,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |        360 |    0.17893 | 0.10348    |    0.60743 |   -0.71848 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       1199 |     8101.9 | 10205.     |     4.2694 |     22.811 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       1197 |     822.28 | 853.48     |     3.7324 |     18.571 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       3323 |     4304.3 | 1111.7     |   -0.44273 |   -0.77616 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |        354 |     4318.3 | 1097.8     |   -0.46717 |   -0.70858 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       4446 |     4552.5 | 1089.5     |   -0.66545 |   -0.61415 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       1241 |     4358.7 | 1135.8     |   -0.54287 |   -0.68059 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9522 |     4217.2 | 1176.7     |   -0.37268 |   -0.89878 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |         83 |  -0.016637 | 0.10672    |    0.29081 |    -1.4734 |
@@ -3764,5 +3780,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs eta                             | "track IP Y vs eta (biased)"                  |          1 |      3.275 | 4.2147e-08 |-1.8981e+08 | 4.5036e+16 |
  | track IP Y vs phi                             | "track IP Y vs phi (biased)"                  |          1 |   -0.47124 | 5.2684e-09 | 1.8981e+08 | 5.4043e+16 |
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |          1 |       0.25 | 0.0000     |          0 |          0 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.armv8.1_a
index d05d89def18daf4018d5ae4e67960b2a5191a5be..6d097cf09a4c82dc3ffbd84775a299a5198995c2 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.armv8.1_a
@@ -2667,6 +2667,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     12.584 | 7.7645     |    0.46377 |   -0.55097 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     13.955 | 8.8291     |    0.52808 |   -0.43778 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |       1638 |     -4.533 | 646.25     |   0.045499 |    0.52015 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |       1686 |     26.364 | 631.39     |   0.017163 |    0.62268 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |        169 |    -27.589 | 541.66     |    0.17759 |     2.9944 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        185 |    -28.581 | 582.68     |   -0.24882 |     3.1373 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       2219 |   -0.59739 | 801.80     |  0.0065501 |   -0.47346 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2227 |    -3.3805 | 800.42     |   0.029801 |   -0.54797 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |        114 | 0.00021053 | 0.00039211 |    -0.8366 |     2.8139 |
@@ -2698,14 +2706,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |         89 |    0.99298 | 0.10007    |    0.18967 |     1.1621 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |         89 |    0.63904 | 1.8045     |   -0.30664 |   -0.16565 |
  | kickZ                                         | "Z position of magnet kick"                   |        251 |       5115 | 76.597     |    0.17809 |   -0.08323 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      37236 |-9.1309e-05 | 0.091861   | -0.0047147 |  -0.011403 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      37236 | -0.0014663 | 1.1249     | -0.0027303 |   -0.20365 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      38668 |     5.4952 | 3.4486     | 0.00029836 |    -1.2147 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |      13250 |     1.4989 | 1.1192     |  0.0032899 |    -1.3626 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |       1638 |    -4.5055 | 646.11     |   0.046256 |    0.52096 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |       1686 |     26.655 | 631.53     |   0.021267 |    0.61007 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |      12630 | 4.4339e-05 | 0.048993   |   0.009765 |      1.072 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |      12630 |  0.0017894 | 1.5474     |  -0.015186 |   -0.20723 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       3324 |     1.0183 | 0.62127    |     1.2707 |      2.318 |
@@ -2760,8 +2766,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |        453 |     1.4945 | 1.1170     |   0.004329 |    -1.3577 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |       1043 |     18.544 | 5.3866     |   -0.59109 |   -0.88424 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |       1125 |      19.19 | 5.1766     |   -0.75159 |   -0.65709 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |        169 |    -28.136 | 542.89     |    0.17636 |     2.9805 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        185 |    -30.081 | 583.38     |   -0.24619 |     3.1707 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |        433 |   0.022979 | 0.069353   |  -0.014736 |   -0.25148 |
  | Long/UTresidualPull                           | "UT residual pull"                            |        433 |    0.52079 | 1.6439     |   -0.12698 |    -0.4892 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |       1916 |-0.00036326 | 0.019481   |   0.076042 |   -0.26105 |
@@ -2823,8 +2827,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      48623 |-6.4578e-05 | 0.093540   |  -0.004189 |  -0.050065 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      48623 |-0.00050594 | 1.1390     | 0.00033632 |   -0.23918 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      50601 |      5.512 | 3.4442     | -0.0073069 |     -1.212 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       2219 |    0.68274 | 803.77     |   0.016003 |   -0.44207 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2227 |     -4.304 | 801.99     |   0.022122 |   -0.52405 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       4446 |      1.324 | 0.75943    |    0.91511 |    0.88611 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       4446 |     1.3261 | 0.77511    |     1.0726 |     2.0608 |
  | Ttrack/eta                                    | "eta"                                         |       4446 |     2.1676 | 0.77067    |    0.75569 |  0.0037587 |
@@ -3119,9 +3121,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | PV-beamline delta y                           | "PV-beamline delta y"                         |        403 |-0.00060794 | 0.028237   |  -0.025679 |    0.82953 |
  | track IP X                                    | "track IP X (biased)"                         |          1 |      -0.07 | 0.0000     |          0 |          0 |
  | track IP Y                                    | "track IP Y (biased)"                         |          1 |       0.01 | 0.0000     |          0 |          0 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42527 |     16.452 | 5.1926     |   -0.14881 |   -0.87491 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11125 |       0.08 | 0.0000     |          0 |          0 |
@@ -3635,6 +3644,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |        360 |    0.17893 | 0.10348    |    0.60743 |   -0.71848 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       1200 |     8099.9 | 10201.     |     4.2717 |     22.836 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       1198 |     821.83 | 853.21     |     3.7338 |     18.585 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       3324 |     4304.9 | 1111.5     |   -0.44413 |   -0.77486 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |        354 |     4318.1 | 1097.9     |   -0.46681 |   -0.70885 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       4446 |     4553.3 | 1088.9     |   -0.66716 |   -0.61019 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       1242 |     4359.5 | 1135.4     |   -0.54463 |   -0.67846 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9523 |     4217.2 | 1176.4     |   -0.37282 |   -0.89763 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |         83 |   -0.01678 | 0.10660    |    0.29224 |    -1.4701 |
@@ -3766,5 +3782,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs eta                             | "track IP Y vs eta (biased)"                  |          1 |      3.275 | 0.0000     |          0 |          0 |
  | track IP Y vs phi                             | "track IP Y vs phi (biased)"                  |          1 |   -0.47124 | 0.0000     |          0 |          0 |
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |          1 |       0.25 | 0.0000     |          0 |          0 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.detdesc
index 71bf8f7929e5e59d39f53df30b7c0ff8f51162cb..17fe93ac640c4abb2ad9e27d41a8390f0bf59257 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.detdesc
@@ -2756,6 +2756,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.865 | 15.070     |    0.51616 |   -0.46898 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.899 | 16.782     |    0.42261 |   -0.60604 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        422 |     11.374 | 819.59     |   0.072524 |   -0.69906 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        450 |     56.667 | 815.36     |  -0.015882 |   -0.57875 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2465 |     -11.06 | 728.33     |  -0.021507 |    0.11287 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2481 |     19.624 | 703.89     |  -0.022499 |    0.19828 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1386 |     3.2942 | 737.89     |   0.053686 |   -0.27142 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1416 |    -17.853 | 748.52     |   0.059348 |   -0.34523 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4420 |-9.2849e-06 | 0.0011466  |    -0.3617 |     10.343 |
@@ -2787,14 +2795,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4059 |    0.99472 | 0.17695    |   -0.19307 |     2.2802 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4059 |-0.00030895 | 1.1872     |  -0.052163 |     1.2764 |
  | kickZ                                         | "Z position of magnet kick"                   |       2850 |     5182.1 | 44.388     |    -2.1458 |     6.3568 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9831 |-2.0344e-06 | 0.087824   | -0.0089559 |   0.072893 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9831 |-0.00031533 | 1.0683     |  0.0072488 |    -0.1061 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10088 |     5.4921 | 3.4431     |  -0.003295 |    -1.2137 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3414 |     1.4915 | 1.1266     |   0.023593 |     -1.379 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        422 |     10.948 | 819.69     |   0.074111 |   -0.70208 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        450 |       57.8 | 815.36     |  -0.013093 |   -0.58296 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3475 | 0.00030791 | 0.036639   |   0.074693 |     1.2936 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3475 |  0.0066475 | 1.1837     |    0.03726 |    0.56325 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        872 |     1.0564 | 0.62021    |     1.1637 |     1.7408 |
@@ -2849,8 +2855,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17366 |     1.4987 | 1.1175     |  0.0019566 |    -1.3588 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      23034 |     17.317 | 4.8098     |   -0.24869 |   -0.80375 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21331 |       17.6 | 4.6701     |   -0.29131 |   -0.72495 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2465 |    -10.996 | 728.35     |  -0.021287 |    0.11657 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2481 |     19.414 | 704.08     |  -0.020753 |    0.19515 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17627 |-2.0991e-05 | 0.038574   |  0.0089263 |     2.3683 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17627 | -0.0040792 | 1.1685     |  -0.014825 |    0.32809 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43794 |  1.845e-05 | 0.013424   |-4.5887e-05 |  -0.020334 |
@@ -2912,8 +2916,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      30811 |-0.00012658 | 0.088296   |  -0.007342 |   0.043689 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      30811 | 0.00013307 | 1.0750     | -0.0019637 |    -0.1577 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      31709 |     5.5156 | 3.4443     | -0.0086602 |    -1.2116 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1386 |     5.3247 | 741.39     |   0.073412 |   -0.20269 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1416 |     -19.28 | 751.25     |   0.043111 |   -0.29573 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2802 |     1.1697 | 0.69527    |    0.99017 |     1.0678 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2802 |      1.169 | 0.69542    |    0.98319 |     1.0627 |
  | Ttrack/eta                                    | "eta"                                         |       2802 |     2.2733 | 0.81900    |    0.60494 |   -0.27575 |
@@ -3220,9 +3222,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 4.4409e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     198.82 | 94.993     |  0.0052558 |     -1.016 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42498 |     16.458 | 5.1862     |    -0.1448 |   -0.88479 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40036 |     16.669 | 5.0773     |   -0.17422 |   -0.82094 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11106 |       0.08 | 0.0000     |          0 |          0 |
@@ -3741,6 +3750,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2294 |    0.10791 | 0.094867   |     1.5704 |     1.5307 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2302 |     4713.4 | 7075.7     |     5.6153 |     48.333 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2193 |     411.43 | 403.59     |     5.0954 |     44.156 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        872 |     4378.1 | 1009.4     |   -0.46187 |   -0.62306 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4946 |     4459.4 | 1075.6     |   -0.61967 |   -0.59754 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2802 |     4594.3 | 1087.4     |   -0.69263 |   -0.63215 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2661 |     4391.9 | 1111.8     |   -0.51557 |   -0.76175 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3840 |     4125.2 | 1200.7     |   -0.29931 |   -0.96045 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2727 |    0.31434 | 0.0000     |          0 |          0 |
@@ -3884,5 +3900,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         35 |    0.24035 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5963 | 0.46543    |     1.6271 |    0.64755 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |     -2.405 | 1.2185     |     1.6271 |    0.64755 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-detdesc-opt
index 503dbad92e31e8b0476f83c6c1d28b51b8d160e8..350768f6031889ca1ba443ebcbb70bc83b5450cb 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -2756,6 +2756,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.944 | 15.124     |    0.51458 |   -0.46474 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.978 | 16.834     |       0.42 |   -0.60612 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        420 |     16.012 | 818.31     |     0.0683 |   -0.69481 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        451 |     59.895 | 817.33     |   -0.01505 |   -0.58485 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2462 |    -11.007 | 728.60     |  -0.019076 |    0.10866 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2487 |     18.622 | 703.83     |  -0.021219 |    0.19628 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1388 |      2.226 | 738.22     |   0.053787 |   -0.27259 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1416 |    -17.253 | 747.90     |   0.059896 |    -0.3412 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4421 |-6.0132e-06 | 0.0011461  |   -0.32807 |     10.357 |
@@ -2787,14 +2795,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4062 |    0.99429 | 0.17694    |   -0.19139 |     2.2757 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4062 |  0.0015127 | 1.1867     |  -0.049166 |     1.2763 |
  | kickZ                                         | "Z position of magnet kick"                   |       2847 |     5182.1 | 44.366     |    -2.1472 |     6.3712 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9821 |-2.0365e-06 | 0.087801   | -0.0088276 |   0.072621 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9821 |-0.00029529 | 1.0681     |  0.0079445 |   -0.10856 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10078 |     5.4927 | 3.4432     | -0.0034117 |    -1.2136 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3410 |     1.4915 | 1.1266     |    0.02362 |     -1.379 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        420 |     15.571 | 818.41     |   0.069966 |   -0.69803 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        451 |     61.031 | 817.33     |  -0.012264 |   -0.58904 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3471 | 0.00031979 | 0.036573   |   0.074492 |     1.3061 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3471 |   0.006828 | 1.1826     |   0.037026 |    0.57256 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        871 |     1.0561 | 0.61963    |     1.1691 |     1.7615 |
@@ -2849,8 +2855,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17371 |     1.4987 | 1.1174     |  0.0020076 |    -1.3586 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      23045 |      17.31 | 4.8157     |   -0.25382 |   -0.78627 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21353 |      17.59 | 4.6725     |   -0.29171 |   -0.71984 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2462 |    -10.942 | 728.60     |  -0.018744 |    0.11238 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2487 |     18.414 | 704.03     |    -0.0195 |    0.19312 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17631 |-2.0986e-05 | 0.038570   |   0.010563 |     2.3651 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17631 |  -0.004192 | 1.1687     |  -0.013999 |    0.33475 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43823 | 2.2226e-05 | 0.013434   |  0.0025258 |  -0.022932 |
@@ -2912,8 +2916,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      30832 |-0.00012195 | 0.088292   | -0.0063773 |    0.04327 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      30832 | 0.00013622 | 1.0750     | -0.0016141 |    -0.1571 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      31732 |     5.5153 | 3.4442     |  -0.008586 |    -1.2114 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1388 |     4.2579 | 741.70     |   0.073547 |     -0.204 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1416 |    -18.686 | 750.64     |   0.043625 |   -0.29154 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2804 |     1.1698 | 0.69545    |    0.99042 |     1.0663 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2804 |     1.1691 | 0.69562    |    0.98316 |     1.0607 |
  | Ttrack/eta                                    | "eta"                                         |       2804 |     2.2737 | 0.81951    |    0.60364 |   -0.27915 |
@@ -3220,9 +3222,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    | 1.2701e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 5.5089e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.16 | 95.185     |   0.021728 |    -1.0319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42648 |     16.455 | 5.1883     |   -0.14839 |   -0.87254 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40152 |     16.661 | 5.0786     |   -0.17312 |    -0.8211 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11142 |       0.08 | 0.0000     |          0 |          0 |
@@ -3741,6 +3750,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2298 |    0.10828 | 0.095280   |     1.5615 |     1.4881 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2308 |     4714.1 | 7070.2     |     5.6128 |     48.336 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2200 |     410.66 | 403.06     |     5.1018 |     44.268 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        871 |     4378.2 | 1009.4     |   -0.46228 |   -0.62235 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4949 |     4464.5 | 1073.1     |   -0.62721 |   -0.58109 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2804 |     4593.8 | 1087.5     |   -0.69131 |   -0.63351 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2668 |     4391.1 | 1109.8     |   -0.51825 |   -0.75773 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3841 |     4137.3 | 1209.3     |   -0.31181 |   -0.97654 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2726 |    0.32939 | 0.0000     |          0 |          0 |
@@ -3884,5 +3900,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         35 |    0.24035 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5963 | 0.46542    |     1.6272 |    0.64774 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4051 | 1.2185     |     1.6272 |    0.64774 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-opt
index 791297c7c2e5556328644d2c08e12ef0d4017539..5d6369904b6c9749bd2826399472c1eec93beb3f 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_full_geometry_with_mcchecking.ref.x86_64_v3-opt
@@ -2667,6 +2667,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     12.618 | 7.7858     |    0.45234 |   -0.58076 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     13.978 | 8.8470     |    0.52271 |   -0.45669 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |       1638 |     -4.533 | 646.25     |   0.045499 |    0.52015 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |       1686 |     25.801 | 631.20     |   0.019052 |    0.62627 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |        168 |    -30.208 | 542.20     |    0.18942 |      3.007 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        185 |    -23.446 | 585.00     |   -0.26097 |     3.0631 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       2220 |    -1.1886 | 802.10     |  0.0067792 |   -0.47517 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2227 |    -3.3805 | 800.42     |   0.029801 |   -0.54797 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |        115 | 0.00020261 | 0.00040292 |   -0.88367 |     2.5965 |
@@ -2698,14 +2706,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |         90 |    0.99333 | 0.099569   |    0.18006 |     1.1968 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |         90 |    0.63611 | 1.7946     |   -0.30338 |   -0.13716 |
  | kickZ                                         | "Z position of magnet kick"                   |        249 |       5115 | 76.697     |    0.17792 |  -0.079479 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      37234 |-8.5943e-05 | 0.091859   |  -0.003165 | -0.0092526 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      37234 | -0.0014557 | 1.1248     |   -0.00193 |   -0.20254 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      38668 |     5.4952 | 3.4486     | 0.00029836 |    -1.2147 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |      13250 |     1.4989 | 1.1192     |  0.0032899 |    -1.3626 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |       1638 |    -4.5055 | 646.11     |   0.046256 |    0.52096 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |       1686 |     26.085 | 631.35     |   0.023202 |    0.61348 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |      12630 | 5.8591e-05 | 0.049006   |   0.011042 |     1.0719 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |      12630 |  0.0018844 | 1.5475     |  -0.015302 |   -0.20751 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       3324 |     1.0186 | 0.62117    |     1.2703 |     2.3186 |
@@ -2760,8 +2766,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |        457 |     1.4945 | 1.1170     |  0.0042913 |    -1.3577 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |       1037 |      18.52 | 5.3918     |   -0.58315 |   -0.89433 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |       1125 |      19.19 | 5.1766     |   -0.75159 |   -0.65709 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |        168 |    -30.714 | 543.47     |    0.18806 |     2.9914 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        185 |    -24.892 | 585.62     |   -0.25896 |     3.0988 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |        437 |   0.022769 | 0.069248   | 0.00039111 |   -0.22376 |
  | Long/UTresidualPull                           | "UT residual pull"                            |        437 |    0.51739 | 1.6457     |   -0.13873 |   -0.45303 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |       1912 |-0.00035983 | 0.019407   |   0.081785 |   -0.25598 |
@@ -2823,8 +2827,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      48636 |-7.1552e-05 | 0.093547   | -0.0040961 |      -0.05 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      48636 |-0.00060245 | 1.1391     |-4.9831e-05 |    -0.2386 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      50615 |     5.5121 | 3.4442     | -0.0073123 |     -1.212 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       2220 |   0.094595 | 804.06     |   0.016244 |   -0.44382 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2227 |     -4.304 | 801.99     |   0.022122 |   -0.52405 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       4447 |     1.3243 | 0.75968    |    0.91432 |    0.88165 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       4447 |     1.3264 | 0.77534    |     1.0716 |     2.0548 |
  | Ttrack/eta                                    | "eta"                                         |       4447 |     2.1674 | 0.77076    |    0.75553 |  0.0033504 |
@@ -3119,9 +3121,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | PV-beamline delta y                           | "PV-beamline delta y"                         |        403 |-0.00048387 | 0.028143   |  -0.021097 |    0.82673 |
  | track IP X                                    | "track IP X (biased)"                         |          1 |      -0.07 | 0.0000     |          0 |          0 |
  | track IP Y                                    | "track IP Y (biased)"                         |          1 |       0.01 | 0.0000     |          0 |          0 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.83 | 96.058     |   0.037622 |   -0.97538 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42659 |     16.451 | 5.1919     |   -0.15015 |   -0.86741 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40165 |     16.655 | 5.0835     |    -0.1759 |   -0.81445 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11152 |       0.08 | 0.0000     |          0 |          0 |
@@ -3635,6 +3644,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |        361 |    0.17936 | 0.10399    |    0.59845 |    -0.7388 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       1202 |     8099.4 | 10188.     |      4.276 |     22.894 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       1200 |     821.37 | 852.12     |     3.7396 |     18.645 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       3324 |     4306.8 | 1111.1     |   -0.44654 |   -0.77028 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |        353 |     4296.7 | 1102.8     |   -0.44847 |   -0.75447 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       4447 |       4552 | 1089.6     |   -0.66374 |   -0.61547 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       1244 |     4358.7 | 1134.8     |   -0.54278 |   -0.67898 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9525 |     4228.2 | 1180.9     |   -0.38705 |   -0.90302 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |         83 |   -0.01663 | 0.10669    |    0.29107 |    -1.4732 |
@@ -3766,5 +3782,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs eta                             | "track IP Y vs eta (biased)"                  |          1 |      3.275 | 0.0000     |          0 |          0 |
  | track IP Y vs phi                             | "track IP Y vs phi (biased)"                  |          1 |   -0.47124 | 0.0000     |          0 |          0 |
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |          1 |       0.25 | 0.0000     |          0 |          0 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref
index 4e95716a117d3eb85a09e3370175e58868f58910..f516f294ab94ce036d9aeb8c2cc60fa8daaee243 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref
@@ -2670,6 +2670,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     24.899 | 14.633     |    0.50004 |   -0.40582 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     28.506 | 16.964     |    0.51586 |   -0.35791 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |     12.066 | 748.05     |   0.010971 |   -0.25939 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |      36.61 | 764.13     |  -0.032612 |   -0.18451 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2330 |    -11.352 | 746.05     |   -0.01695 |  -0.015254 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.657 | 717.53     |  -0.022024 |   0.072829 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1403 |     7.7568 | 732.11     |   0.070791 |   -0.24832 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -16.882 | 743.55     |   0.060255 |   -0.30808 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4063 | 0.00015742 | 0.0011850  |   0.044062 |      10.84 |
@@ -2701,14 +2709,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3741 |    0.98905 | 0.23858    |  -0.048077 |   0.098134 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3741 |   -0.97628 | 1.3686     |    0.37155 |    0.77487 |
  | kickZ                                         | "Z position of magnet kick"                   |       2660 |     5178.7 | 50.367     |    -2.0169 |     5.5917 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11854 |-0.00013498 | 0.088535   |  -0.024468 |    0.10962 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11854 | -0.0014679 | 1.0770     |  -0.014368 |  -0.080754 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12214 |     5.4939 | 3.4417     | -0.0028835 |    -1.2127 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4136 |     1.4923 | 1.1256     |   0.020792 |    -1.3767 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |      11.59 | 748.14     |    0.01326 |    -0.2633 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |     37.528 | 764.45     |  -0.030619 |   -0.18834 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4231 | 0.00013472 | 0.037484   |   0.078009 |     1.7687 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4231 |  0.0069723 | 1.2353     |   0.037185 |    0.11226 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1053 |     1.0759 | 0.62733    |     1.0718 |     1.4436 |
@@ -2763,8 +2769,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15966 |     1.4989 | 1.1179     | 0.00091844 |    -1.3597 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21958 |     17.149 | 4.8196     |   -0.21327 |   -0.80988 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20447 |     17.453 | 4.6606     |   -0.25175 |   -0.74173 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2330 |    -11.266 | 746.05     |  -0.016881 |  -0.012018 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.527 | 717.68     |  -0.020477 |   0.068709 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15652 |  0.0022297 | 0.045775   |   -0.06268 |    0.50488 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15652 |   0.088694 | 1.4320     |  0.0058989 |  -0.095304 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41741 |-0.00028571 | 0.013772   |  0.0031453 |  -0.013589 |
@@ -2826,8 +2830,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31152 | -0.0001284 | 0.088922   |  -0.010152 |   0.051436 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31152 | 3.2101e-05 | 1.0825     | -0.0026106 |   -0.15911 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      32088 |     5.5186 | 3.4442     | -0.0098362 |    -1.2114 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1403 |     9.7398 | 735.69     |   0.090127 |   -0.17846 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -18.245 | 746.30     |   0.044203 |   -0.25747 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2836 |     1.1897 | 0.70504    |    0.94806 |    0.83458 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2836 |     1.1907 | 0.70892    |    0.97406 |     1.0368 |
  | Ttrack/eta                                    | "eta"                                         |       2836 |     2.2821 | 0.82163    |    0.58713 |    -0.3272 |
@@ -3546,9 +3548,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5527e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42522 |     16.452 | 5.1928     |   -0.14905 |   -0.87484 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11123 |       0.08 | 0.0000     |          0 |          0 |
@@ -4074,6 +4083,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       1995 |    0.12873 | 0.10111    |     1.1975 |    0.38521 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2187 |     4522.1 | 7059.4     |     6.0191 |     49.446 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2045 |     410.69 | 441.83     |     6.2703 |     62.085 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1053 |     4454.3 | 1005.8     |    -0.6194 |   -0.42125 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4697 |     4389.6 | 1105.2     |   -0.56299 |   -0.69649 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2836 |     4598.1 | 1084.6     |    -0.6927 |   -0.61886 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2537 |     4413.4 | 1098.4     |    -0.5284 |   -0.72009 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4223 |     4145.9 | 1200.4     |   -0.32087 |    -0.9436 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2409 | -0.0010472 | 0.078531   |  0.0020199 |   -0.66133 |
@@ -4217,5 +4233,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |    -0.1569 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |    -0.1569 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.armv8.1_a
index d57d27e6267975c8afb809f631670fdf3f46714b..20b332ef983baecbb29dd546c8f56108ec6df93f 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.armv8.1_a
@@ -2672,6 +2672,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |      24.91 | 14.648     |    0.49977 |   -0.41193 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     28.528 | 16.973     |    0.51416 |    -0.3631 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        518 |     12.693 | 748.64     |  0.0086127 |   -0.26279 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |      36.61 | 764.13     |  -0.032612 |   -0.18451 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2334 |    -10.454 | 745.87     |  -0.018061 |  -0.015039 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.657 | 717.53     |  -0.022024 |   0.072829 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     6.7801 | 731.76     |   0.072339 |   -0.24601 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -16.882 | 743.55     |   0.060255 |   -0.30808 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4066 | 0.00016054 | 0.0011858  |   0.060529 |     10.815 |
@@ -2703,14 +2711,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3743 |    0.98915 | 0.23862    |  -0.048485 |    0.09699 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3743 |   -0.97629 | 1.3688     |    0.37153 |     0.7724 |
  | kickZ                                         | "Z position of magnet kick"                   |       2663 |     5178.7 | 50.388     |     -2.016 |     5.5771 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11843 |-0.00014017 | 0.088527   |  -0.025054 |    0.10923 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11843 |  -0.001427 | 1.0768     |  -0.014619 |  -0.082067 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12203 |     5.4939 | 3.4415     | -0.0029485 |    -1.2125 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4132 |     1.4923 | 1.1256     |   0.020812 |    -1.3767 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        518 |      12.22 | 748.72     |   0.010888 |   -0.26667 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |     37.528 | 764.45     |  -0.030619 |   -0.18834 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4227 | 0.00013958 | 0.037503   |   0.077692 |     1.7636 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4227 |  0.0069316 | 1.2359     |   0.037542 |    0.11168 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1052 |     1.0735 | 0.62679    |     1.0742 |     1.4625 |
@@ -2765,8 +2771,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15975 |      1.499 | 1.1180     | 0.00083976 |    -1.3599 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21954 |     17.151 | 4.8186     |   -0.21331 |   -0.80946 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20484 |      17.45 | 4.6626     |   -0.25206 |   -0.74188 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2334 |    -10.347 | 745.88     |  -0.017954 |  -0.011901 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.527 | 717.68     |  -0.020477 |   0.068709 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15660 |  0.0022197 | 0.045818   |  -0.060191 |    0.52637 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15660 |   0.088636 | 1.4323     |  0.0056955 |  -0.094246 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41771 |-0.00028398 | 0.013779   |  0.0062466 | -0.0064729 |
@@ -2828,8 +2832,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31161 |-0.00012259 | 0.088935   | -0.0099058 |   0.050558 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31161 | 0.00013799 | 1.0827     | -0.0021583 |   -0.16005 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      32098 |     5.5179 | 3.4443     | -0.0095977 |    -1.2115 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     8.7393 | 735.34     |   0.091686 |   -0.17587 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -18.245 | 746.30     |   0.044203 |   -0.25747 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2837 |     1.1901 | 0.70507    |    0.94631 |    0.83087 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2837 |     1.1912 | 0.70891    |    0.97223 |     1.0333 |
  | Ttrack/eta                                    | "eta"                                         |       2837 |     2.2822 | 0.82145    |    0.58712 |   -0.32659 |
@@ -3548,9 +3550,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42527 |     16.452 | 5.1926     |   -0.14881 |   -0.87491 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11125 |       0.08 | 0.0000     |          0 |          0 |
@@ -4076,6 +4085,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       1995 |    0.12867 | 0.10110    |     1.1983 |    0.38685 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2189 |     4521.8 | 7057.5     |     6.0208 |     49.475 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2047 |     410.47 | 441.75     |      6.272 |     62.114 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1052 |     4454.7 | 1006.3     |    -0.6199 |   -0.42352 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4701 |     4388.5 | 1105.2     |   -0.56144 |   -0.69903 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2837 |     4600.1 | 1083.2     |   -0.69725 |   -0.60946 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2539 |     4414.8 | 1097.4     |   -0.53212 |   -0.71369 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4224 |     4146.3 | 1199.8     |     -0.322 |    -0.9412 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2411 | -0.0010916 | 0.078524   |  0.0026171 |   -0.66081 |
@@ -4219,5 +4235,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |   -0.15682 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |   -0.15682 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.detdesc
index 1b425e7f33d19b4954b796d95661b90c3d5e44e9..9207a39b160db52d553030e1d51b77721a420fd6 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.detdesc
@@ -2726,6 +2726,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.213 | 14.735     |    0.54779 |   -0.37746 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.337 | 16.378     |    0.43901 |   -0.51215 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        428 |     1.1682 | 822.63     |      0.049 |   -0.71841 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |      58.61 | 818.76     |  -0.024862 |   -0.59366 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2452 |    -9.2781 | 727.93     |  -0.028076 |    0.12381 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2473 |      24.51 | 700.50     |  -0.016822 |    0.21343 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1393 |     6.3757 | 736.58     |   0.066607 |   -0.27134 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |    -23.524 | 751.42     |   0.058383 |   -0.34322 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4378 | 4.4519e-19 | 0.0011202  |   -0.22014 |     11.456 |
@@ -2757,14 +2765,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4005 |    0.99464 | 0.17464    |   -0.14721 |     2.0759 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4005 |  0.0097984 | 1.1997     |  -0.036156 |     1.3441 |
  | kickZ                                         | "Z position of magnet kick"                   |       2846 |     5181.6 | 45.205     |    -2.1708 |     6.3569 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9750 | 9.8462e-05 | 0.088160   |  -0.015881 |   0.066641 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9750 | 0.00022564 | 1.0726     | -0.0047011 |   -0.11484 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10012 |     5.4913 | 3.4431     | -0.0029943 |    -1.2131 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3387 |     1.4916 | 1.1266     |   0.023415 |    -1.3789 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        428 |    0.77103 | 822.66     |   0.051215 |   -0.72083 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |      59.76 | 818.85     |   -0.02147 |   -0.59831 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3448 | 0.00029582 | 0.036800   |   0.081233 |     1.4127 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3448 |  0.0081787 | 1.1891     |    0.02459 |    0.48526 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        865 |     1.0665 | 0.61175    |     1.0517 |     1.2826 |
@@ -2819,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17225 |     1.4982 | 1.1174     |  0.0025642 |    -1.3586 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22951 |      17.29 | 4.8050     |   -0.23795 |   -0.82014 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21302 |     17.569 | 4.6649     |    -0.2799 |    -0.7349 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2452 |    -9.1884 | 727.93     |  -0.027778 |    0.12716 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2473 |     24.353 | 700.62     |  -0.015194 |     0.2104 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17497 |-3.1434e-05 | 0.038857   | -0.0044303 |     2.2682 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17497 |  -0.003685 | 1.1699     |  -0.038536 |    0.30442 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43655 | 2.0204e-05 | 0.013497   |   0.013852 |  -0.011456 |
@@ -2882,8 +2886,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31031 | -8.701e-05 | 0.088838   |  -0.014814 |   0.050393 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31031 | 0.00046727 | 1.0817     | -0.0069363 |   -0.15835 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      31969 |     5.5161 | 3.4440     | -0.0090757 |    -1.2115 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1393 |     8.3238 | 740.10     |   0.085818 |   -0.20243 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |     -24.93 | 754.21     |   0.042789 |   -0.29506 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2825 |     1.1886 | 0.70631    |     0.9553 |    0.84908 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2825 |     1.1898 | 0.71026    |    0.97928 |     1.0478 |
  | Ttrack/eta                                    | "eta"                                         |       2825 |     2.2729 | 0.81781    |    0.60447 |   -0.27546 |
@@ -3655,9 +3657,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 4.4409e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     198.82 | 94.993     |  0.0052558 |     -1.016 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42498 |     16.458 | 5.1862     |    -0.1448 |   -0.88479 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40036 |     16.669 | 5.0773     |   -0.17422 |   -0.82094 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11106 |       0.08 | 0.0000     |          0 |          0 |
@@ -4177,6 +4186,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2238 |    0.11314 | 0.095246   |     1.4938 |     1.3518 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2268 |     4595.5 | 6360.0     |     4.2938 |     25.432 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2150 |     414.76 | 422.52     |     6.1796 |     71.146 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        865 |     4396.7 | 1008.1     |     -0.505 |   -0.55683 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4925 |     4435.3 | 1096.1     |   -0.61077 |   -0.64365 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2825 |     4598.3 | 1085.1     |   -0.69651 |   -0.62249 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2611 |     4379.8 | 1119.9     |   -0.50238 |   -0.78725 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3912 |     4128.8 | 1199.2     |   -0.30452 |   -0.95316 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2716 |    -17.025 | 0.0000     |          0 |          0 |
@@ -4320,5 +4336,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10789 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5846 | 0.45565    |     1.7134 |    0.93575 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4357 | 1.1929     |     1.7134 |    0.93575 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-detdesc-opt
index e03ebaeb9cce16e0270a83e575de647fa52d7512..d4a1a03eb262dfc5ff237d23268214dbd6c4935a 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -2726,6 +2726,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.225 | 14.780     |    0.55075 |   -0.35351 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |      29.36 | 16.409     |    0.43749 |   -0.49733 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        427 |     4.5375 | 820.82     |   0.048128 |   -0.71184 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |     60.841 | 821.38     |  -0.020536 |   -0.60191 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2454 |    -8.8733 | 729.34     |  -0.028486 |    0.11031 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2477 |     25.076 | 700.41     |  -0.017331 |    0.21324 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1394 |     4.6034 | 736.71     |   0.067919 |   -0.26942 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |    -24.624 | 750.76     |   0.059752 |   -0.33866 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4383 | 6.3985e-07 | 0.0011233  |   -0.21419 |     11.342 |
@@ -2757,14 +2765,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4008 |    0.99407 | 0.17457    |   -0.15475 |     2.0836 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4008 |   0.012075 | 1.2005     |  -0.023212 |     1.3762 |
  | kickZ                                         | "Z position of magnet kick"                   |       2844 |     5181.6 | 45.227     |    -2.1674 |     6.3378 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9739 | 8.8305e-05 | 0.088103   |  -0.016447 |   0.066273 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9739 | 0.00017456 | 1.0718     | -0.0048365 |   -0.11723 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10001 |     5.4925 | 3.4429     | -0.0031852 |    -1.2129 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3383 |     1.4916 | 1.1266     |   0.023442 |    -1.3789 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        427 |     4.1803 | 820.83     |   0.050306 |   -0.71417 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |     62.025 | 821.50     |  -0.017232 |    -0.6067 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3444 | 0.00030778 | 0.036747   |   0.080683 |     1.4214 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3444 |  0.0082462 | 1.1890     |   0.023512 |    0.48845 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        864 |     1.0656 | 0.61084    |     1.0582 |      1.311 |
@@ -2819,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17244 |     1.4982 | 1.1175     |   0.002634 |    -1.3587 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22991 |     17.285 | 4.8081     |   -0.24059 |   -0.81002 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21317 |     17.559 | 4.6674     |   -0.28047 |    -0.7298 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2454 |    -8.7775 | 729.36     |  -0.028011 |    0.11358 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2477 |     24.919 | 700.53     |  -0.015688 |    0.21021 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17514 |-3.8826e-05 | 0.038910   |  0.0012993 |     2.3062 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17514 | -0.0039162 | 1.1711     |  -0.036267 |     0.3194 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43707 | 1.9905e-05 | 0.013495   |   0.013973 |  -0.040882 |
@@ -2882,8 +2886,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31042 |-8.2469e-05 | 0.088818   |   -0.01324 |   0.050611 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31042 | 0.00053476 | 1.0815     | -0.0055653 |    -0.1582 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      31982 |     5.5156 | 3.4440     | -0.0089197 |    -1.2115 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1394 |     6.5423 | 740.20     |   0.087173 |   -0.20041 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |    -26.041 | 753.56     |    0.04414 |   -0.29046 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2826 |     1.1882 | 0.70625    |    0.95697 |    0.85388 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2826 |     1.1895 | 0.71021    |    0.98062 |     1.0521 |
  | Ttrack/eta                                    | "eta"                                         |       2826 |     2.2738 | 0.81809    |    0.60326 |   -0.27803 |
@@ -3655,9 +3657,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    | 1.2701e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 5.5089e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.16 | 95.185     |   0.021728 |    -1.0319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42648 |     16.455 | 5.1883     |   -0.14839 |   -0.87254 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40152 |     16.661 | 5.0786     |   -0.17312 |    -0.8211 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11142 |       0.08 | 0.0000     |          0 |          0 |
@@ -4178,6 +4187,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2235 |    0.11288 | 0.095001   |     1.4948 |     1.3574 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2269 |     4590.3 | 6360.6     |     4.2948 |     25.434 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2153 |        414 | 422.33     |     6.1859 |     71.245 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        864 |     4393.4 | 1010.9     |   -0.50012 |   -0.57421 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4931 |     4439.5 | 1091.7     |   -0.61664 |   -0.62223 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2826 |     4598.6 | 1084.7     |   -0.69649 |   -0.62047 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2613 |     4379.4 | 1116.7     |   -0.50596 |   -0.77645 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3915 |     4141.9 | 1208.9     |    -0.3169 |    -0.9734 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2715 |     1.1035 | 0.0000     |          0 |          0 |
@@ -4321,5 +4337,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10789 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5846 | 0.45565    |     1.7134 |     0.9359 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4357 | 1.1929     |     1.7134 |     0.9359 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-opt
index 540a291d674bee2f49a26062ee9ea870ab08189a..8c1c6afc00e91ebb684bed35e990a18ff5dcf5d5 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_default_reco_track_master_fitter_with_mcchecking.ref.x86_64_v3-opt
@@ -2672,6 +2672,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     24.955 | 14.685     |    0.51579 |   -0.35798 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     28.584 | 16.998     |     0.5202 |   -0.33234 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |     11.729 | 748.24     |   0.011898 |   -0.26178 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        535 |     34.603 | 764.83     |  -0.029765 |   -0.19304 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2331 |    -10.913 | 746.65     |  -0.017863 |  -0.020381 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2368 |     22.508 | 717.58     |  -0.021227 |   0.075683 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     5.9961 | 732.24     |   0.072021 |   -0.24636 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1434 |    -17.123 | 743.35     |   0.061165 |    -0.3069 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4065 | 0.00016218 | 0.0011838  |   0.080545 |     10.805 |
@@ -2703,14 +2711,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3742 |    0.98907 | 0.23851    |  -0.050068 |   0.097433 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3742 |   -0.97564 | 1.3673     |    0.37399 |    0.77655 |
  | kickZ                                         | "Z position of magnet kick"                   |       2658 |     5178.8 | 50.089     |    -1.9982 |     5.4775 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11866 |-0.00013484 | 0.088525   |  -0.025736 |    0.10832 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11866 | -0.0013652 | 1.0770     |  -0.015487 |  -0.081397 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12226 |     5.4944 | 3.4413     | -0.0030023 |    -1.2125 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4140 |     1.4923 | 1.1255     |   0.020772 |    -1.3767 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |     11.301 | 748.29     |   0.014073 |    -0.2653 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        535 |     35.523 | 765.14     |  -0.027767 |   -0.19681 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4235 | 0.00012987 | 0.037467   |   0.078417 |     1.7726 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4235 |  0.0069658 | 1.2350     |   0.037581 |    0.11515 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1054 |     1.0745 | 0.62661    |     1.0694 |     1.4531 |
@@ -2765,8 +2771,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15972 |     1.4989 | 1.1180     |  0.0010751 |    -1.3599 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21965 |     17.145 | 4.8216     |   -0.21231 |   -0.81148 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20470 |     17.445 | 4.6625     |   -0.25068 |   -0.74269 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2331 |     -10.83 | 746.65     |  -0.017694 |  -0.017252 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2368 |     22.373 | 717.72     |  -0.019687 |   0.071611 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15659 |  0.0022281 | 0.045830   |  -0.061875 |    0.52575 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15659 |    0.08865 | 1.4324     |  0.0045333 |   -0.09426 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41769 |-0.00028457 | 0.013781   |  0.0057299 |   -0.01655 |
@@ -2828,8 +2832,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31174 | -0.0001296 | 0.088928   | -0.0097668 |   0.051518 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31174 |-1.9247e-05 | 1.0826     | -0.0026661 |   -0.15788 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      32113 |     5.5181 | 3.4442     | -0.0096672 |    -1.2114 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     7.9701 | 735.80     |   0.091403 |    -0.1764 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1434 |    -18.494 | 746.10     |   0.045132 |   -0.25634 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2838 |       1.19 | 0.70542    |    0.94714 |    0.82859 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2838 |     1.1911 | 0.70929    |    0.97277 |     1.0299 |
  | Ttrack/eta                                    | "eta"                                         |       2838 |     2.2827 | 0.82188    |    0.58646 |   -0.32928 |
@@ -3548,9 +3550,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.83 | 96.058     |   0.037622 |   -0.97538 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42659 |     16.451 | 5.1919     |   -0.15015 |   -0.86741 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40165 |     16.655 | 5.0835     |    -0.1759 |   -0.81445 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11152 |       0.08 | 0.0000     |          0 |          0 |
@@ -4076,6 +4085,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       1995 |    0.12902 | 0.10155    |     1.1937 |    0.36386 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2193 |     4516.7 | 7052.8     |     6.0253 |     49.548 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2050 |     409.57 | 441.19     |     6.2887 |     62.381 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1054 |     4452.7 | 1007.4     |   -0.61719 |   -0.43237 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4699 |     4387.2 | 1105.7     |   -0.55796 |   -0.70247 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2838 |     4598.5 | 1084.2     |   -0.69299 |   -0.61641 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2544 |     4413.4 | 1096.4     |   -0.52783 |   -0.71567 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4223 |     4163.3 | 1207.9     |   -0.34375 |   -0.95444 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2408 |-0.00070054 | 0.078472   |   0.013206 |    -0.6588 |
@@ -4219,5 +4235,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |   -0.15682 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |   -0.15682 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref
index 49c7b8f773efbc970149a72544323a9daec6dcc2..06e3a460898a263513cdb13a5b67e5573ada3d98 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref
@@ -2668,6 +2668,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.303 | 15.060     |    0.52727 |   -0.40854 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.045 | 17.522     |    0.54486 |    -0.3573 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        352 |    -1.4205 | 835.25     |   0.018403 |   -0.72867 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        358 |     28.142 | 861.27     |  -0.042398 |   -0.70607 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2267 |    -13.768 | 742.97     |  -0.023118 |   0.004032 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2292 |     21.739 | 715.06     | -0.0094451 |   0.086912 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1592 |      15.69 | 709.44     |   0.085594 |   -0.11808 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1618 |    -13.984 | 723.12     |   0.034461 |   -0.15581 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3957 | 0.00015171 | 0.0011354  |   -0.20211 |     10.476 |
@@ -2699,14 +2707,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3624 |    0.99052 | 0.23836    |  -0.056309 |   0.092147 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3624 |   -0.99252 | 1.3487     |    0.34709 |    0.72558 |
  | kickZ                                         | "Z position of magnet kick"                   |       2603 |     5179.2 | 49.354     |    -2.0135 |     5.6514 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       8023 |-3.7392e-05 | 0.087265   | -0.0063714 |   0.059854 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       8023 | -0.0012838 | 1.0603     |  0.0061859 |   -0.12064 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8224 |     5.4912 | 3.4425     | -0.0022867 |     -1.213 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2782 |     1.4917 | 1.1263     |   0.022838 |    -1.3784 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        352 |    -2.0455 | 835.17     |   0.019069 |   -0.73183 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        358 |     29.162 | 860.98     |   -0.04263 |   -0.70751 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2846 | 0.00013352 | 0.038633   |   0.069422 |      1.677 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2846 |  0.0063949 | 1.2313     |    0.02728 |    0.33739 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        710 |      1.061 | 0.62309    |     1.1277 |     1.4832 |
@@ -2761,8 +2767,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15561 |     1.4986 | 1.1177     |  0.0014128 |    -1.3591 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21384 |     17.112 | 4.8153     |   -0.20501 |   -0.81012 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19906 |     17.412 | 4.6626     |   -0.24504 |   -0.74207 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2267 |     -13.69 | 742.94     |   -0.02289 |  0.0074092 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2292 |     21.531 | 715.27     | -0.0074835 |    0.08297 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15265 |  0.0022516 | 0.045547   |  -0.053607 |    0.48477 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15265 |   0.088744 | 1.4226     |  0.0052239 |   -0.13772 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40639 | -0.0002913 | 0.013780   |  0.0025658 |  -0.017373 |
@@ -2824,8 +2828,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      35371 |-0.00011705 | 0.088711   | -0.0095757 |   0.068861 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      35371 |-0.00013288 | 1.0798     | -0.0032536 |    -0.1517 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      36440 |     5.5174 | 3.4446     | -0.0094951 |     -1.212 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1592 |     17.469 | 712.63     |    0.10465 |  -0.048428 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1618 |    -15.074 | 725.76     |   0.018893 |   -0.10595 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       3210 |     1.1853 | 0.69826    |    0.92937 |    0.79522 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       3210 |     1.1862 | 0.70211    |    0.95081 |    0.97676 |
  | Ttrack/eta                                    | "eta"                                         |       3210 |      2.382 | 0.88413    |    0.53904 |   -0.51079 |
@@ -3132,9 +3134,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5527e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42522 |     16.452 | 5.1928     |   -0.14905 |   -0.87484 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11123 |       0.08 | 0.0000     |          0 |          0 |
@@ -3655,6 +3664,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2030 |    0.12909 | 0.10129    |     1.1907 |    0.35977 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2233 |     4600.2 | 7262.7     |     6.0786 |     49.942 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2085 |      413.9 | 461.90     |     6.6159 |     66.688 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        710 |     4327.1 | 1069.2     |   -0.54302 |   -0.56163 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4559 |     4369.6 | 1110.2     |   -0.53024 |    -0.7345 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       3210 |     4594.6 | 1076.1     |   -0.68213 |   -0.60909 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2585 |     4422.2 | 1095.8     |   -0.53784 |   -0.70517 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4251 |     4145.7 | 1201.0     |   -0.32186 |   -0.94525 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2380 | 0.00065252 | 0.080376   |   0.050871 |   -0.63759 |
@@ -3798,5 +3814,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |    -0.1569 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |    -0.1569 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.armv8.1_a
index c5198d0943cba22ed53b63e9cb37e3d64021feda..6b3ab5fc782bee984f3de331b1edfa78575d51ba 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.armv8.1_a
@@ -2670,6 +2670,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.303 | 15.061     |    0.52734 |    -0.4089 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.056 | 17.520     |     0.5441 |   -0.35716 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        352 |    -1.4205 | 835.25     |   0.018403 |   -0.72867 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        358 |     28.142 | 861.27     |  -0.042398 |   -0.70607 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2271 |    -12.841 | 742.79     |  -0.024241 |  0.0042316 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2292 |     21.739 | 715.06     | -0.0094451 |   0.086912 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1592 |      15.03 | 709.33     |   0.086068 |   -0.11712 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1618 |    -13.984 | 723.12     |   0.034461 |   -0.15581 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3960 |  0.0001531 | 0.0011372  |   -0.19468 |      10.44 |
@@ -2701,14 +2709,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3626 |    0.99053 | 0.23845    |  -0.056113 |   0.088801 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3626 |   -0.99342 | 1.3490     |    0.34792 |    0.72277 |
  | kickZ                                         | "Z position of magnet kick"                   |       2606 |     5179.2 | 49.378     |    -2.0126 |     5.6358 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       8023 |-5.2349e-05 | 0.087236   |  -0.007784 |   0.059824 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       8023 | -0.0013087 | 1.0600     |  0.0049285 |   -0.12181 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8224 |     5.4911 | 3.4424     | -0.0023255 |    -1.2129 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2782 |     1.4917 | 1.1263     |   0.022838 |    -1.3784 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        352 |    -2.0455 | 835.17     |   0.019069 |   -0.73183 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        358 |     29.162 | 860.98     |   -0.04263 |   -0.70751 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2846 | 0.00014055 | 0.038637   |   0.069014 |     1.6753 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2846 |  0.0063247 | 1.2314     |   0.027862 |    0.34063 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        710 |     1.0577 | 0.62184    |       1.13 |     1.5142 |
@@ -2763,8 +2769,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15571 |     1.4986 | 1.1177     |  0.0014121 |    -1.3593 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21380 |     17.114 | 4.8143     |   -0.20506 |    -0.8097 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19943 |      17.41 | 4.6645     |   -0.24535 |   -0.74225 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2271 |    -12.741 | 742.78     |  -0.023971 |  0.0075073 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2292 |     21.531 | 715.27     | -0.0074835 |    0.08297 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15274 |   0.002247 | 0.045596   |  -0.050939 |    0.50676 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15274 |   0.088922 | 1.4232     |  0.0060317 |   -0.13513 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40669 |-0.00028961 | 0.013788   |  0.0057672 |  -0.010094 |
@@ -2826,8 +2830,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      35369 |-0.00011592 | 0.088725   | -0.0091108 |   0.068069 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      35369 |-8.7647e-05 | 1.0800     | -0.0025371 |   -0.15268 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      36439 |     5.5168 | 3.4446     | -0.0092997 |    -1.2119 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1592 |      16.79 | 712.51     |    0.10512 |  -0.047246 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1618 |    -15.074 | 725.76     |   0.018893 |   -0.10595 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       3210 |     1.1857 | 0.69839    |    0.92792 |    0.79112 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       3210 |     1.1866 | 0.70221    |    0.94928 |    0.97287 |
  | Ttrack/eta                                    | "eta"                                         |       3210 |     2.3819 | 0.88398    |    0.53985 |   -0.50935 |
@@ -3134,9 +3136,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42527 |     16.452 | 5.1926     |   -0.14881 |   -0.87491 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11125 |       0.08 | 0.0000     |          0 |          0 |
@@ -3657,6 +3666,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2030 |    0.12903 | 0.10129    |     1.1914 |    0.36137 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2234 |     4600.2 | 7262.7     |     6.0786 |     49.942 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2086 |     413.82 | 461.90     |     6.6164 |     66.693 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        710 |       4328 | 1068.9     |   -0.54479 |   -0.55975 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4563 |     4368.8 | 1110.1     |    -0.5293 |   -0.73614 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       3210 |     4596.5 | 1074.9     |   -0.68638 |   -0.60063 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2586 |     4422.8 | 1095.2     |   -0.53968 |   -0.70109 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4252 |     4146.1 | 1200.4     |   -0.32299 |   -0.94287 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2382 | 0.00060407 | 0.080365   |   0.051385 |   -0.63714 |
@@ -3800,5 +3816,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |   -0.15682 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |   -0.15682 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.detdesc
index 575e80229b5ee252a836de76dec4eaa25e165df6..6c2438ea30bc033a4b53be2c8bbf98f4be7cd5a1 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.detdesc
@@ -2726,6 +2726,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.539 | 15.022     |    0.57083 |   -0.32637 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.854 | 16.841     |    0.46604 |   -0.46636 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |     15.071 | 829.31     |   0.029042 |   -0.73117 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        356 |     15.098 | 853.36     |  -0.015951 |   -0.67519 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2396 |    -10.914 | 723.29     |  -0.029408 |    0.16273 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2401 |     22.954 | 697.14     |  -0.023057 |    0.22531 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1482 |     9.3096 | 737.34     |     0.0788 |   -0.30691 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1513 |    -17.444 | 747.31     |   0.055993 |   -0.32503 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4273 |-9.2996e-06 | 0.0010985  |   -0.33673 |     12.233 |
@@ -2757,14 +2765,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3893 |    0.99599 | 0.17336    |   -0.11889 |     1.9938 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3893 |   0.013553 | 1.1908     |  -0.015331 |     1.3836 |
  | kickZ                                         | "Z position of magnet kick"                   |       2804 |     5181.9 | 44.971     |    -2.1907 |     6.4975 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       7962 | 0.00010048 | 0.087632   |   0.014465 |    0.10491 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       7962 | 0.00030143 | 1.0647     |   0.014092 |    -0.1136 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8170 |     5.4927 | 3.4443     | -0.0032101 |    -1.2139 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2770 |     1.4924 | 1.1257     |   0.021153 |    -1.3771 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |     14.314 | 829.24     |   0.029855 |   -0.73276 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        356 |     16.264 | 852.97     |  -0.015318 |   -0.67731 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2831 | 0.00037089 | 0.036341   |   0.054236 |     1.5215 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2831 |  0.0087955 | 1.1394     |   0.014667 |    0.28425 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        706 |     1.0671 | 0.61727    |     1.0993 |     1.4629 |
@@ -2819,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      16832 |     1.4984 | 1.1177     |  0.0024866 |    -1.3593 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22333 |     17.254 | 4.8034     |   -0.23011 |   -0.82156 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20872 |      17.55 | 4.6665     |   -0.27583 |   -0.73655 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2396 |    -10.868 | 723.28     |  -0.029029 |    0.16664 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2401 |     22.772 | 697.36     |  -0.021592 |    0.22271 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17113 |-1.9284e-05 | 0.038516   |  -0.013652 |      2.186 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17113 | -0.0018563 | 1.1579     |  -0.030797 |    0.19504 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      42624 | 1.6423e-05 | 0.013493   |   0.015014 |   -0.01209 |
@@ -2882,8 +2886,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      32968 |-5.2172e-05 | 0.088723   |  -0.014793 |   0.056657 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      32968 | 0.00061878 | 1.0800     | -0.0076306 |   -0.15781 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      33943 |     5.5163 | 3.4441     | -0.0091246 |    -1.2116 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1482 |     11.275 | 740.58     |   0.096547 |   -0.24282 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1513 |    -18.629 | 750.06     |   0.041624 |   -0.27887 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2995 |     1.1845 | 0.70307    |    0.95152 |    0.82831 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2995 |      1.186 | 0.70658    |    0.97645 |     1.0249 |
  | Ttrack/eta                                    | "eta"                                         |       2995 |     2.2793 | 0.81622    |    0.60235 |   -0.27515 |
@@ -3190,9 +3192,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 4.4409e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     198.82 | 94.993     |  0.0052558 |     -1.016 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42498 |     16.458 | 5.1862     |    -0.1448 |   -0.88479 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40036 |     16.669 | 5.0773     |   -0.17422 |   -0.82094 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11106 |       0.08 | 0.0000     |          0 |          0 |
@@ -3713,6 +3722,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2279 |    0.11315 | 0.095081   |     1.4901 |     1.3463 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2314 |       4628 | 6390.7     |     4.2585 |     24.879 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2189 |     415.45 | 432.43     |     6.2164 |     68.913 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        706 |     4311.8 | 1042.2     |   -0.47552 |   -0.54833 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4797 |       4405 | 1099.8     |   -0.56079 |   -0.69776 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2995 |     4596.5 | 1081.8     |   -0.69194 |   -0.62002 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2657 |     4385.6 | 1119.5     |   -0.50839 |   -0.78271 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3930 |     4130.7 | 1198.7     |    -0.3076 |   -0.95135 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2691 |    0.63828 | 0.0000     |          0 |          0 |
@@ -3856,5 +3872,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10789 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5846 | 0.45565    |     1.7134 |    0.93575 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4357 | 1.1929     |     1.7134 |    0.93575 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
index 34a62703b7b3f707f9aa7448c16136f652858989..05b0b66f4fbca2f77e341fc97cebb6100b4de59f 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -2726,6 +2726,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.551 | 15.072     |    0.57537 |   -0.29786 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.876 | 16.875     |    0.46594 |   -0.44954 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |     18.429 | 825.99     |   0.030814 |   -0.71747 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        356 |     21.489 | 856.02     |  -0.021058 |   -0.67934 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2398 |    -10.498 | 724.74     |  -0.029779 |    0.14854 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2405 |     22.989 | 696.84     |  -0.022296 |    0.22774 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1482 |     7.8241 | 737.69     |   0.079251 |    -0.3065 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1512 |    -19.118 | 746.99     |   0.058944 |   -0.32265 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4277 | -8.661e-06 | 0.0011018  |   -0.32858 |     12.105 |
@@ -2757,14 +2765,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3895 |    0.99539 | 0.17333    |   -0.12679 |      2.001 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3895 |   0.015927 | 1.1917     |  -0.001796 |     1.4162 |
  | kickZ                                         | "Z position of magnet kick"                   |       2802 |     5181.8 | 45.035     |    -2.1834 |     6.4455 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       7964 | 8.5384e-05 | 0.087502   |   0.012309 |    0.10788 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       7964 | 0.00010045 | 1.0630     |   0.012134 |   -0.11376 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8172 |     5.4934 | 3.4444     | -0.0033494 |    -1.2138 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2771 |     1.4926 | 1.1256     |   0.020699 |    -1.3768 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |     17.657 | 825.92     |   0.031709 |   -0.71923 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        356 |     22.669 | 855.63     |  -0.020397 |   -0.68136 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2831 | 0.00035676 | 0.036271   |   0.046924 |     1.5555 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2831 |   0.008089 | 1.1406     |-0.00089328 |     0.3771 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        706 |      1.064 | 0.61634    |      1.114 |     1.5069 |
@@ -2819,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      16847 |     1.4984 | 1.1177     |  0.0025587 |    -1.3593 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22371 |      17.25 | 4.8074     |   -0.23294 |    -0.8118 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20886 |     17.539 | 4.6691     |   -0.27634 |   -0.73144 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2398 |    -10.446 | 724.76     |  -0.029215 |    0.15236 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2405 |     22.796 | 697.05     |  -0.020819 |    0.22516 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17126 |-2.4524e-05 | 0.038573   | -0.0073897 |     2.2283 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17126 | -0.0020948 | 1.1589     |  -0.028661 |    0.21299 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      42673 | 1.6357e-05 | 0.013490   |   0.015263 |  -0.041947 |
@@ -2882,8 +2886,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      32955 |-4.5517e-05 | 0.088730   |  -0.013733 |   0.056493 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      32955 | 0.00074951 | 1.0801     | -0.0066586 |   -0.15782 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      33931 |      5.516 | 3.4440     | -0.0090054 |    -1.2115 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1482 |     9.7976 | 740.90     |   0.097001 |   -0.24225 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1512 |    -20.298 | 749.75     |   0.044531 |   -0.27658 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2994 |     1.1851 | 0.70310    |     0.9505 |    0.82823 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2994 |     1.1866 | 0.70659    |    0.97534 |     1.0249 |
  | Ttrack/eta                                    | "eta"                                         |       2994 |     2.2797 | 0.81691    |    0.60178 |   -0.27944 |
@@ -3190,9 +3192,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    | 1.2701e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 5.5089e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.16 | 95.185     |   0.021728 |    -1.0319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42648 |     16.455 | 5.1883     |   -0.14839 |   -0.87254 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40152 |     16.661 | 5.0786     |   -0.17312 |    -0.8211 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11142 |       0.08 | 0.0000     |          0 |          0 |
@@ -3713,6 +3722,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2276 |    0.11289 | 0.094841   |     1.4909 |     1.3512 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2315 |     4622.9 | 6391.4     |     4.2594 |     24.881 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2192 |      414.7 | 432.24     |     6.2226 |     69.009 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        706 |     4311.8 | 1042.1     |   -0.47556 |   -0.54735 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4803 |     4411.6 | 1096.1     |   -0.56826 |   -0.67752 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2994 |     4596.5 | 1081.6     |   -0.69153 |   -0.61914 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2659 |     4385.2 | 1116.4     |   -0.51185 |   -0.77208 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3932 |     4143.8 | 1208.3     |   -0.31996 |   -0.97141 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2689 |    0.41152 | 0.0000     |          0 |          0 |
@@ -3856,5 +3872,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10789 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5846 | 0.45565    |     1.7134 |     0.9359 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4357 | 1.1929     |     1.7134 |     0.9359 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-opt
index 8933a695cd636ad11b6ec378e3b67da1917dc810..19bfb9ccf2dda226e2a7032fd3dc71834126dd88 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_fast_reco_with_mcchecking.ref.x86_64_v3-opt
@@ -2670,6 +2670,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.348 | 15.100     |    0.54608 |   -0.33767 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.112 | 17.543     |    0.55147 |   -0.31761 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        352 |     1.4915 | 832.28     |   0.020342 |   -0.71669 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        359 |     32.277 | 863.63     |  -0.042156 |   -0.71228 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2268 |    -13.316 | 743.59     |  -0.024018 |  -0.001314 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2294 |      22.45 | 715.00     | -0.0079598 |   0.090428 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1592 |     14.244 | 709.82     |   0.085739 |   -0.11806 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1618 |    -15.561 | 722.57     |   0.033499 |    -0.1567 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3959 | 0.00015468 | 0.0011350  |   -0.17259 |     10.422 |
@@ -2701,14 +2709,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3625 |    0.99045 | 0.23834    |  -0.057748 |   0.089259 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3625 |   -0.99276 | 1.3474     |    0.35042 |    0.72667 |
  | kickZ                                         | "Z position of magnet kick"                   |       2602 |     5179.3 | 49.101     |    -1.9881 |     5.4875 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       8036 |-6.4709e-05 | 0.087139   | -0.0069832 |   0.060525 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       8036 | -0.0013191 | 1.0589     |  0.0067339 |   -0.12217 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8237 |     5.4918 | 3.4427     | -0.0024064 |     -1.213 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2786 |     1.4917 | 1.1263     |   0.022806 |    -1.3784 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        352 |    0.85227 | 832.20     |   0.021109 |   -0.72001 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        359 |     33.301 | 863.34     |  -0.042346 |   -0.71367 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2850 |  0.0001193 | 0.038477   |   0.071032 |      1.698 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2850 |  0.0063158 | 1.2277     |   0.028192 |    0.35913 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        711 |     1.0556 | 0.62098    |     1.1398 |     1.5449 |
@@ -2763,8 +2769,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15568 |     1.4985 | 1.1177     |  0.0016536 |    -1.3592 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21396 |      17.11 | 4.8176     |   -0.20429 |   -0.81186 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19929 |     17.405 | 4.6645     |   -0.24395 |   -0.74304 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2268 |    -13.241 | 743.58     |  -0.023686 |  0.0019523 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2294 |     22.232 | 715.21     | -0.0059911 |   0.086489 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15273 |  0.0022556 | 0.045608   |  -0.052693 |    0.50617 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15273 |   0.088936 | 1.4233     |  0.0048574 |    -0.1352 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40672 |-0.00028983 | 0.013789   |  0.0051191 |  -0.020259 |
@@ -2826,8 +2830,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      35369 |-0.00011931 | 0.088737   | -0.0096538 |   0.068735 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      35369 | -0.0001555 | 1.0801     | -0.0035733 |   -0.15098 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      36441 |     5.5171 | 3.4445     | -0.0093841 |    -1.2119 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1592 |     16.036 | 712.98     |    0.10478 |  -0.048218 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1618 |     -16.65 | 725.20     |   0.017932 |   -0.10677 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       3210 |     1.1861 | 0.69878    |    0.92688 |    0.78607 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       3210 |      1.187 | 0.70264    |      0.948 |    0.96665 |
  | Ttrack/eta                                    | "eta"                                         |       3210 |     2.3821 | 0.88446    |    0.53949 |   -0.51229 |
@@ -3134,9 +3136,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.83 | 96.058     |   0.037622 |   -0.97538 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42659 |     16.451 | 5.1919     |   -0.15015 |   -0.86741 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40165 |     16.655 | 5.0835     |    -0.1759 |   -0.81445 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11152 |       0.08 | 0.0000     |          0 |          0 |
@@ -3657,6 +3666,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2030 |    0.12937 | 0.10172    |     1.1869 |    0.33884 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2238 |     4595.1 | 7258.0     |      6.083 |     50.014 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2089 |     412.93 | 461.36     |     6.6326 |     66.957 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        711 |     4328.3 | 1068.8     |   -0.54559 |   -0.55802 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4562 |     4368.2 | 1110.8     |   -0.52611 |   -0.73943 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       3210 |     4594.7 | 1076.0     |   -0.68198 |   -0.60822 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2591 |     4421.3 | 1094.2     |   -0.53537 |   -0.70326 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4250 |       4163 | 1208.5     |   -0.34462 |   -0.95597 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2379 |      0.001 | 0.080314   |   0.060955 |   -0.63678 |
@@ -3800,5 +3816,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |   -0.15682 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |   -0.15682 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref
index acc8a7551c4ef6a64c2818a710667d9f043698d8..6c4c35fde78b9b95d854bb83a59a6fab6b4617aa 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref
@@ -2576,6 +2576,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     45.742 | 24.203     |    0.18601 |   -0.81863 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     47.719 | 25.055     |    0.15645 |    -0.8637 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        353 |     -5.772 | 824.15     |   0.037745 |   -0.70498 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        354 |     42.514 | 855.52     |  -0.054055 |   -0.68675 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2113 |    -12.748 | 738.81     |  0.0040972 |   0.038631 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2134 |     15.897 | 721.03     |  -0.013758 |   0.065969 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -3.0721 | 730.68     |   0.023899 |  -0.060548 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3744 | 0.00016351 | 0.0011174  |  -0.099318 |     10.549 |
@@ -2607,14 +2615,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3475 |    0.99202 | 0.24297    |  -0.086003 |  -0.065225 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3475 |    -1.0038 | 1.2653     |    0.37259 |    0.84757 |
  | kickZ                                         | "Z position of magnet kick"                   |       2468 |     5180.7 | 47.604     |    -2.2088 |      6.573 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       8030 | -0.0002142 | 0.091397   |   0.039803 |    0.48495 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       8030 | -0.0048817 | 1.0358     |   0.014303 |   0.048687 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8191 |      5.492 | 3.4428     | -0.0023162 |    -1.2131 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2773 |     1.4922 | 1.1259     |   0.021576 |    -1.3774 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        353 |    -6.3314 | 823.53     |   0.039824 |   -0.70797 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        354 |     43.898 | 855.57     |  -0.055746 |   -0.68621 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2843 | 1.0552e-05 | 0.040788   |   0.023746 |     1.1542 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2843 |-0.00063336 | 1.1731     |   -0.06968 |    0.93741 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        707 |    0.98904 | 0.59904    |     1.1987 |     1.7625 |
@@ -2669,8 +2675,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      14715 |     1.4994 | 1.1168     |  0.0005938 |    -1.3571 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      20239 |     17.039 | 4.7915     |   -0.17588 |   -0.83213 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      18882 |     17.323 | 4.6554     |   -0.22808 |   -0.74406 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2113 |    -12.643 | 738.79     |  0.0031354 |   0.043826 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2134 |     15.829 | 721.23     |  -0.011488 |   0.060786 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      14620 |  0.0022832 | 0.048895   |  -0.039032 |    0.63461 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      14620 |   0.078221 | 1.3346     |  0.0016267 |   -0.06658 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      38473 | 1.9078e-05 | 0.013405   |  -0.013681 |   -0.17486 |
@@ -2732,8 +2736,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90063 |-3.6641e-05 | 0.089735   |  0.0055889 |    0.53458 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90063 |-0.00039195 | 1.0132     |  0.0085552 |  -0.024308 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91868 |     5.5056 | 3.4458     | -0.0039381 |    -1.2131 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -2.3788 | 731.89     |   0.030979 |  -0.034651 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7986 |     1.0146 | 0.57181    |    0.74011 | -0.0079597 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7986 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7986 |     1.0134 | 0.57227    |    0.73858 |   0.011517 |
@@ -3391,9 +3393,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.3 | 0.0000     |          0 |          0 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5527e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42522 |     16.452 | 5.1928     |   -0.14905 |   -0.87484 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11123 |       0.08 | 0.0000     |          0 |          0 |
@@ -3821,6 +3830,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       3810 |   0.077805 | 0.095701   |     1.4279 |      1.139 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4237 |      10161 | 10450.     |     3.2972 |     16.317 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4053 |     564.75 | 479.20     |     2.9346 |     13.877 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        707 |     4378.9 | 1082.0     |   -0.65215 |   -0.47423 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4247 |     4340.7 | 1115.0     |   -0.50184 |   -0.74456 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7986 |     4515.4 | 1093.7     |   -0.65459 |   -0.56958 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2634 |     4416.3 | 1099.9     |   -0.52994 |   -0.72657 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9348 |     4240.3 | 1169.1     |   -0.39397 |   -0.86739 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2262 |-0.00034243 | 0.081453   |    0.10234 |   -0.68423 |
@@ -3972,5 +3988,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18394 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9907 | 0.59980    |  -0.052253 |    -1.9973 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.3727 | 1.5703     |  -0.052253 |    -1.9973 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.armv8.1_a
index 3e6e5f2381c5537da79e6393f2eca526c5a9d6b9..51db2ae3fc4565142dfc5b26abd6be37e34bb6b2 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.armv8.1_a
@@ -2576,6 +2576,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     45.753 | 24.197     |    0.18411 |   -0.81762 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |      47.73 | 25.049     |    0.15443 |   -0.86267 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        353 |     -5.772 | 824.15     |   0.037745 |   -0.70498 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        354 |     42.514 | 855.52     |  -0.054055 |   -0.68675 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2114 |    -12.051 | 738.79     |  0.0029497 |   0.038506 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2134 |     15.897 | 721.03     |  -0.013758 |   0.065969 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.9672 | 730.62     |   0.023514 |  -0.060273 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3745 | 0.00016367 | 0.0011172  |  -0.099877 |     10.557 |
@@ -2607,14 +2615,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3475 |    0.99202 | 0.24297    |  -0.086003 |  -0.065225 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3475 |    -1.0038 | 1.2652     |    0.37277 |    0.84754 |
  | kickZ                                         | "Z position of magnet kick"                   |       2469 |     5180.8 | 47.585     |    -2.2113 |     6.5876 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       8030 |-0.00012453 | 0.091458   |    0.04659 |    0.48777 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       8030 | -0.0039103 | 1.0364     |   0.022154 |   0.048096 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8191 |     5.4919 | 3.4427     | -0.0023551 |    -1.2131 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2773 |     1.4922 | 1.1259     |   0.021576 |    -1.3774 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        353 |    -6.3314 | 823.53     |   0.039824 |   -0.70797 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        354 |     43.898 | 855.57     |  -0.055746 |   -0.68621 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2843 | 3.5174e-06 | 0.040792   |   0.024123 |     1.1529 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2843 | -0.0007741 | 1.1733     |  -0.069387 |    0.93508 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        707 |    0.99031 | 0.60266    |     1.2231 |     1.8454 |
@@ -2669,8 +2675,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      14718 |     1.4994 | 1.1168     | 0.00050857 |    -1.3572 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      20235 |      17.04 | 4.7905     |   -0.17591 |   -0.83174 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      18894 |     17.325 | 4.6549     |   -0.22832 |   -0.74361 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2114 |    -11.935 | 738.78     |  0.0020229 |   0.043663 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2134 |     15.829 | 721.23     |  -0.011488 |   0.060786 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      14623 |  0.0022738 | 0.048970   |  -0.032881 |    0.69086 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      14623 |   0.078239 | 1.3357     |  0.0032166 |  -0.059423 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      38482 |  1.923e-05 | 0.013406   |  -0.013643 |   -0.17406 |
@@ -2732,8 +2736,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90072 |-3.6415e-05 | 0.089730   |  0.0053723 |    0.53431 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90072 |-0.00042633 | 1.0132     |  0.0082985 |  -0.024709 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91878 |     5.5054 | 3.4458     | -0.0038988 |    -1.2131 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.2759 | 731.82     |   0.030601 |  -0.034359 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7987 |     1.0146 | 0.57176    |    0.73998 | -0.0077167 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7987 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7987 |     1.0134 | 0.57221    |    0.73846 |   0.011906 |
@@ -3391,9 +3393,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.3 | 0.0000     |          0 |          0 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42527 |     16.452 | 5.1926     |   -0.14881 |   -0.87491 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11125 |       0.08 | 0.0000     |          0 |          0 |
@@ -3821,6 +3830,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       3811 |    0.07791 | 0.095761   |     1.4241 |     1.1242 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4238 |      10163 | 10450.     |     3.2961 |     16.311 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4054 |     564.69 | 479.16     |      2.935 |     13.881 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        707 |     4378.8 | 1082.0     |   -0.65186 |   -0.47461 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4248 |     4341.3 | 1114.4     |   -0.50316 |   -0.74206 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7987 |     4516.5 | 1092.9     |   -0.65699 |   -0.56467 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2635 |     4416.4 | 1099.6     |   -0.53033 |   -0.72498 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9348 |       4240 | 1169.2     |   -0.39322 |   -0.86792 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2263 |-0.00039098 | 0.081427   |    0.10342 |   -0.68349 |
@@ -3972,5 +3988,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18394 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9906 | 0.59980    |  -0.052167 |    -1.9973 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.3728 | 1.5703     |  -0.052167 |    -1.9973 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.detdesc
index f53ddd3cf438867e3d06333f74017541ce3fdf80..f7b7c4a49b44bf4b9eded11134f04fee90612847 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.detdesc
@@ -2645,6 +2645,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     48.404 | 25.785     |     0.1796 |   -0.87094 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     50.404 | 26.671     |     0.1679 |   -0.86998 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |     19.643 | 822.48     |   0.037142 |    -0.7198 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        353 |     28.293 | 847.29     |  -0.023697 |   -0.65852 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2227 |    -11.231 | 721.49     |   0.001532 |    0.18691 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2259 |     18.365 | 702.25     |  -0.027122 |    0.21612 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -3.0721 | 730.68     |   0.023899 |  -0.060548 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4072 | 1.7789e-05 | 0.0010917  |   -0.36975 |     11.713 |
@@ -2676,14 +2684,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3773 |    0.99475 | 0.18943    |  -0.021964 |     2.2772 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3773 |   0.074376 | 1.1805     |   0.023905 |     1.1138 |
  | kickZ                                         | "Z position of magnet kick"                   |       2684 |     5183.7 | 41.472     |    -2.0906 |     6.2385 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       7968 |-6.0241e-05 | 0.092065   |   0.067799 |    0.52637 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       7968 |   -0.00251 | 1.0423     |   0.031249 |   0.061616 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8137 |     5.4921 | 3.4449     | -0.0025248 |    -1.2143 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2760 |     1.4928 | 1.1254     |   0.020333 |    -1.3765 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |     19.029 | 821.76     |   0.038732 |   -0.72146 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        353 |     30.042 | 847.33     |  -0.024825 |   -0.65936 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2798 | 0.00011437 | 0.044089   |   0.011668 |     2.0254 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2798 |-0.00089381 | 1.1838     |  -0.065856 |    0.36518 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        703 |    0.99751 | 0.59154    |     1.0774 |     1.2552 |
@@ -2738,8 +2744,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      16028 |     1.4979 | 1.1181     |  0.0030136 |    -1.3602 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21197 |     17.203 | 4.7867     |   -0.21249 |   -0.82951 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19872 |     17.477 | 4.6586     |   -0.26145 |   -0.73944 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2227 |     -11.12 | 721.47     | 0.00070761 |    0.19253 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2259 |     18.293 | 702.52     |   -0.02548 |    0.21073 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      16152 | 0.00057949 | 0.044527   |   0.056221 |     2.0385 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      16152 |  0.0081979 | 1.1599     |  -0.026954 |    0.15387 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40491 |-3.0377e-05 | 0.013456   |  -0.013309 |   -0.18474 |
@@ -2801,8 +2805,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90063 |-3.6641e-05 | 0.089735   |  0.0055889 |    0.53458 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90063 |-0.00039195 | 1.0132     |  0.0085552 |  -0.024308 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91868 |     5.5056 | 3.4458     | -0.0039381 |    -1.2131 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -2.3788 | 731.89     |   0.030979 |  -0.034651 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7986 |     1.0146 | 0.57181    |    0.74011 | -0.0079597 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7986 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7986 |     1.0134 | 0.57227    |    0.73858 |   0.011517 |
@@ -3512,9 +3514,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 4.4409e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     198.82 | 94.993     |  0.0052558 |     -1.016 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42498 |     16.458 | 5.1862     |    -0.1448 |   -0.88479 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40036 |     16.669 | 5.0773     |   -0.17422 |   -0.82094 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11106 |       0.08 | 0.0000     |          0 |          0 |
@@ -3942,6 +3951,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4193 |   0.040825 | 0.071070   |     2.6783 |     7.2804 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4475 |      11710 | 12632.     |     2.7164 |     9.5653 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4292 |     591.97 | 502.06     |     2.6843 |     11.178 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        703 |     4290.4 | 1034.6     |   -0.47677 |   -0.58424 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4486 |     4369.5 | 1104.1     |   -0.55958 |   -0.66429 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7986 |     4515.4 | 1093.7     |   -0.65459 |   -0.56958 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2741 |     4369.1 | 1124.8     |   -0.49201 |   -0.78866 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9323 |     4231.2 | 1171.6     |   -0.38253 |   -0.87822 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2591 |  -0.015431 | 0.11693    |   0.019521 |     -1.187 |
@@ -4093,5 +4109,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.11013 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5865 | 0.45726    |     1.6991 |    0.88698 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4307 | 1.1971     |     1.6991 |    0.88698 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
index dfd384f3b96748b62bb0fde6d39d4c83c9c3eaa3..4f1f79ed7fbff5c4d75b4bf313511edb9f97bc96 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -2645,6 +2645,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     48.416 | 25.842     |    0.18252 |   -0.86899 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     50.416 | 26.727     |    0.17125 |   -0.86828 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |         23 | 819.10     |   0.039403 |    -0.7063 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        353 |     34.738 | 849.90     |  -0.028859 |   -0.66238 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2228 |    -11.355 | 722.22     | 0.00022217 |    0.17978 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2259 |     16.949 | 701.97     |  -0.027851 |    0.21609 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -3.4028 | 730.88     |   0.023778 |  -0.061925 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4073 | 1.9479e-05 | 0.0010934  |   -0.33591 |     11.686 |
@@ -2676,14 +2684,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3774 |     0.9945 | 0.18934    |  -0.022554 |     2.2819 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3774 |   0.074124 | 1.1804     |   0.025141 |     1.1147 |
  | kickZ                                         | "Z position of magnet kick"                   |       2680 |     5183.8 | 41.427     |    -2.0948 |      6.275 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       7970 |-5.0188e-05 | 0.091931   |   0.068183 |    0.53335 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       7970 | -0.0022334 | 1.0408     |   0.030934 |   0.063352 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8139 |     5.4928 | 3.4450     |  -0.002665 |    -1.2142 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2761 |     1.4929 | 1.1253     |   0.019878 |    -1.3761 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        350 |     22.371 | 818.38     |   0.041116 |   -0.70817 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        353 |     36.501 | 849.94     |  -0.029969 |   -0.66308 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2798 | 8.5776e-05 | 0.044057   |  0.0094054 |     2.0198 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2798 | -0.0018949 | 1.1846     |  -0.080988 |    0.40231 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        703 |    0.99452 | 0.59085    |     1.0911 |     1.2925 |
@@ -2738,8 +2744,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      16032 |     1.4979 | 1.1181     |  0.0030129 |    -1.3602 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21213 |     17.202 | 4.7859     |   -0.21242 |   -0.82952 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19884 |     17.471 | 4.6591     |   -0.26047 |   -0.73911 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2228 |    -11.243 | 722.22     |-0.00056698 |    0.18525 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2259 |     16.873 | 702.24     |  -0.026216 |    0.21066 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      16156 |  0.0005744 | 0.044496   |   0.054662 |     2.0333 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      16156 |  0.0078859 | 1.1592     |   -0.02748 |    0.15392 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40521 | -3.608e-05 | 0.013457   |  -0.014548 |   -0.18112 |
@@ -2801,8 +2805,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90073 |-3.4417e-05 | 0.089733   |  0.0054271 |     0.5344 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90073 |-0.00042743 | 1.0132     |  0.0081986 |  -0.024262 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91880 |     5.5054 | 3.4458     | -0.0039029 |     -1.213 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.7076 | 732.09     |   0.030871 |  -0.036056 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7987 |     1.0147 | 0.57191    |    0.74059 | -0.0068279 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7987 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7987 |     1.0135 | 0.57237    |    0.73914 |   0.012966 |
@@ -3512,9 +3514,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    | 1.2701e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 5.5089e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.16 | 95.185     |   0.021728 |    -1.0319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42648 |     16.455 | 5.1883     |   -0.14839 |   -0.87254 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40152 |     16.661 | 5.0786     |   -0.17312 |    -0.8211 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11142 |       0.08 | 0.0000     |          0 |          0 |
@@ -3942,6 +3951,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4192 |   0.040776 | 0.071024   |     2.6827 |     7.3208 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4476 |      11697 | 12629.     |     2.7189 |     9.5823 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4293 |     591.57 | 501.72     |     2.6883 |     11.215 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        703 |     4291.1 | 1034.4     |   -0.47832 |   -0.58144 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4487 |     4378.6 | 1103.7     |   -0.57339 |    -0.6459 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7987 |     4515.4 | 1093.5     |   -0.65429 |   -0.56862 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2742 |     4368.4 | 1123.4     |   -0.49616 |   -0.78305 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9339 |     4238.9 | 1173.1     |   -0.39459 |   -0.87742 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2589 |  -0.016038 | 0.11642    |   0.012301 |    -1.1908 |
@@ -4093,5 +4109,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.11012 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5865 | 0.45726    |     1.6992 |    0.88714 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4307 | 1.1971     |     1.6992 |    0.88714 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-opt
index 4a8a9efec2c17e580a17ce46bd3dbae9d0bce655..80c853709551ecd85f69399b679dedc2c6067f9c 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_fastest_reco_with_mcchecking.ref.x86_64_v3-opt
@@ -2576,6 +2576,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     45.742 | 24.247     |    0.18852 |   -0.81566 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     47.719 | 25.097     |    0.15949 |   -0.86106 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        353 |    -2.8683 | 821.17     |   0.040139 |   -0.69311 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        355 |     46.655 | 857.86     |  -0.053771 |   -0.69314 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2114 |     -12.76 | 739.48     |  0.0025232 |   0.032837 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2133 |     15.512 | 721.27     |  -0.013104 |   0.065183 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -3.4028 | 730.88     |   0.023778 |  -0.061925 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3745 | 0.00016458 | 0.0011154  |  -0.080894 |     10.531 |
@@ -2607,14 +2615,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3475 |    0.99188 | 0.24286    |  -0.086713 |  -0.065291 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3475 |    -1.0031 | 1.2638     |     0.3775 |    0.84952 |
  | kickZ                                         | "Z position of magnet kick"                   |       2465 |     5180.9 | 47.282     |     -2.199 |     6.5406 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       8043 | -0.0001119 | 0.091370   |   0.045676 |    0.49018 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       8043 |  -0.003817 | 1.0355     |   0.020627 |     0.0482 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |       8204 |     5.4926 | 3.4430     | -0.0024365 |    -1.2132 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       2777 |     1.4923 | 1.1259     |   0.021545 |    -1.3774 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        353 |    -3.4419 | 820.54     |   0.042358 |   -0.69628 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        355 |     48.042 | 857.92     |  -0.055423 |   -0.69256 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       2847 | 1.0537e-05 | 0.040648   |    0.02384 |     1.1672 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       2847 | -0.0010541 | 1.1702     |  -0.070015 |    0.95854 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        708 |    0.98814 | 0.60192    |     1.2331 |     1.8772 |
@@ -2669,8 +2675,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      14718 |     1.4993 | 1.1169     | 0.00070298 |    -1.3574 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      20247 |     17.035 | 4.7919     |   -0.17501 |   -0.83264 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      18895 |      17.32 | 4.6541     |   -0.22711 |   -0.74376 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2114 |    -12.658 | 739.49     |  0.0016068 |   0.037845 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2133 |     15.436 | 721.47     |  -0.010825 |   0.059996 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      14623 |  0.0022752 | 0.048989   |  -0.032766 |    0.68989 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      14623 |   0.078184 | 1.3354     |  0.0034179 |  -0.058348 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      38492 | 1.3925e-05 | 0.013409   |  -0.013313 |   -0.16807 |
@@ -2732,8 +2736,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90073 |-3.4417e-05 | 0.089733   |  0.0054271 |     0.5344 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90073 |-0.00042743 | 1.0132     |  0.0081986 |  -0.024262 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91880 |     5.5054 | 3.4458     | -0.0039029 |     -1.213 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.7076 | 732.09     |   0.030871 |  -0.036056 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7987 |     1.0147 | 0.57191    |    0.74059 | -0.0068279 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7987 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7987 |     1.0135 | 0.57237    |    0.73914 |   0.012966 |
@@ -3393,9 +3395,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.3 | 0.0000     |          0 |          0 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.83 | 96.058     |   0.037622 |   -0.97538 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42659 |     16.451 | 5.1919     |   -0.15015 |   -0.86741 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40165 |     16.655 | 5.0835     |    -0.1759 |   -0.81445 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11152 |       0.08 | 0.0000     |          0 |          0 |
@@ -3823,6 +3832,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       3811 |   0.077938 | 0.095895   |      1.428 |     1.1384 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4237 |      10152 | 10447.     |        3.3 |     16.347 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4053 |     564.83 | 479.18     |     2.9346 |     13.879 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        708 |       4379 | 1081.9     |   -0.65249 |   -0.47295 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4247 |     4344.6 | 1114.3     |   -0.50853 |   -0.73526 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7987 |     4515.4 | 1093.5     |   -0.65429 |   -0.56862 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2641 |     4417.8 | 1097.1     |    -0.5285 |   -0.72004 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9358 |     4245.8 | 1171.9     |   -0.40076 |   -0.87291 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2262 |-0.00044008 | 0.081415   |    0.10326 |    -0.6832 |
@@ -3974,5 +3990,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18394 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9906 | 0.59980    |  -0.052169 |    -1.9973 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.3728 | 1.5703     |  -0.052169 |    -1.9973 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref
index 780d26ca332abcec0a7057f36d16ad1ad97dc8a1..0649f78bfaf8a572a0162813c241fa01002a283c 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref
@@ -2601,6 +2601,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     47.876 | 26.069     |    0.30334 |   -0.66803 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     50.303 | 27.242     |    0.28854 |   -0.68732 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        539 |    -10.598 | 749.12     |   0.017111 |   -0.23849 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        555 |     45.113 | 738.63     |  -0.016879 |  -0.093158 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2227 |    -12.377 | 743.83     |  -0.013095 | -0.0070713 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2250 |     25.133 | 724.80     |  -0.028066 |   0.033365 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -3.0721 | 730.68     |   0.023899 |  -0.060548 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3955 | 0.00016768 | 0.0011835  |   0.021919 |     10.853 |
@@ -2632,14 +2640,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3569 |    0.98824 | 0.24000    |  -0.081618 |  -0.065763 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3569 |   -0.96823 | 1.3124     |    0.42441 |    0.95978 |
  | kickZ                                         | "Z position of magnet kick"                   |       2479 |     5180.7 | 47.028     |    -2.0861 |     5.9292 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      12382 |-5.8149e-05 | 0.092778   |   0.020782 |    0.54674 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      12382 | -0.0028267 | 1.0507     |   0.015605 |    0.06021 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12695 |     5.4931 | 3.4410     | -0.0026924 |    -1.2126 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4304 |     1.4928 | 1.1246     |   0.018927 |    -1.3747 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        539 |    -10.937 | 749.02     |   0.020198 |   -0.24114 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        555 |     46.189 | 739.32     |  -0.016906 |  -0.093764 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4428 |  0.0001084 | 0.039996   |   0.091404 |     1.5761 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4428 |-0.00054225 | 1.1871     |  -0.011569 |    0.52531 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1094 |    0.99954 | 0.59519    |     1.1445 |     1.6781 |
@@ -2694,8 +2700,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15509 |     1.4993 | 1.1173     | 0.00017084 |    -1.3582 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21178 |     17.081 | 4.7999     |   -0.18673 |   -0.83233 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19723 |     17.405 | 4.6515     |   -0.24328 |    -0.7416 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2227 |    -12.238 | 743.80     |  -0.014053 | -0.0019537 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2250 |     25.027 | 725.00     |  -0.025951 |   0.027293 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15383 |  0.0022941 | 0.049391   |   -0.03386 |    0.75931 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15383 |   0.078334 | 1.3498     |-0.00079119 |  -0.035973 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40194 | 2.0302e-05 | 0.013494   |  -0.012191 |   -0.14592 |
@@ -2757,8 +2761,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90063 |-3.6641e-05 | 0.089735   |  0.0055889 |    0.53458 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90063 |-0.00039195 | 1.0132     |  0.0085552 |  -0.024308 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91868 |     5.5056 | 3.4458     | -0.0039381 |    -1.2131 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -2.3788 | 731.89     |   0.030979 |  -0.034651 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7986 |     1.0146 | 0.57181    |    0.74011 | -0.0079597 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7986 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7986 |     1.0134 | 0.57227    |    0.73858 |   0.011517 |
@@ -3164,9 +3166,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.3 | 0.0000     |          0 |          0 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5527e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42522 |     16.452 | 5.1928     |   -0.14905 |   -0.87484 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11123 |       0.08 | 0.0000     |          0 |          0 |
@@ -3600,6 +3609,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       3937 |   0.082086 | 0.098559   |      1.351 |    0.87633 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4466 |      10049 | 10398.     |     3.3047 |     16.258 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4238 |     558.36 | 477.44     |     2.9113 |      13.48 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1094 |     4499.9 | 1003.8     |   -0.72315 |   -0.27543 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4477 |     4365.9 | 1113.2     |   -0.53205 |    -0.7225 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7986 |     4515.4 | 1093.7     |   -0.65459 |   -0.56958 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2521 |     4412.4 | 1100.4     |   -0.53298 |   -0.71304 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9348 |     4240.3 | 1169.1     |   -0.39397 |   -0.86739 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2341 | -0.0027819 | 0.082180   |   0.015172 |   -0.71682 |
@@ -3751,5 +3767,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18333 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9773 | 0.60000    | -0.0076272 |    -1.9999 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.4077 | 1.5708     | -0.0076272 |    -1.9999 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.armv8.1_a
index 3ae3214d7ebbff00d38f57ac277817a75440032e..571351fd249f1d0445a0faefc8bca0dd239ae6e5 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.armv8.1_a
@@ -2603,6 +2603,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     47.899 | 26.055     |    0.30066 |   -0.66499 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     50.326 | 27.226     |    0.28581 |   -0.68419 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        538 |    -10.037 | 749.71     |   0.014979 |   -0.24205 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        555 |     45.113 | 738.63     |  -0.016879 |  -0.093158 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2229 |    -11.749 | 743.65     |  -0.014058 | -0.0057911 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2250 |     25.133 | 724.80     |  -0.028066 |   0.033365 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.9672 | 730.62     |   0.023514 |  -0.060273 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3956 | 0.00016981 | 0.0011825  |   0.033768 |      10.87 |
@@ -2634,14 +2642,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3569 |    0.98833 | 0.23995    |  -0.082278 |  -0.063677 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3569 |   -0.96753 | 1.3124     |    0.42333 |    0.95844 |
  | kickZ                                         | "Z position of magnet kick"                   |       2481 |     5180.7 | 47.071     |    -2.0833 |     5.9013 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      12371 |-1.6167e-06 | 0.092831   |   0.024593 |    0.54779 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      12371 | -0.0022068 | 1.0512     |   0.019862 |   0.059246 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12684 |     5.4931 | 3.4408     | -0.0027549 |    -1.2124 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4300 |     1.4928 | 1.1246     |   0.018945 |    -1.3747 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        538 |    -10.372 | 749.61     |   0.018051 |   -0.24468 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        555 |     46.189 | 739.32     |  -0.016906 |  -0.093764 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4424 | 0.00010398 | 0.040016   |   0.091595 |     1.5715 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4424 | -0.0006332 | 1.1878     |  -0.011396 |    0.52109 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1093 |     1.0004 | 0.59795    |     1.1602 |     1.7263 |
@@ -2696,8 +2702,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15511 |     1.4994 | 1.1173     | 9.4317e-06 |    -1.3583 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21174 |     17.083 | 4.7989     |   -0.18676 |   -0.83195 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19747 |     17.404 | 4.6513     |   -0.24296 |   -0.74168 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2229 |    -11.595 | 743.63     |  -0.015005 |-0.00069674 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2250 |     25.027 | 725.00     |  -0.025951 |   0.027293 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15385 |  0.0022873 | 0.049458   |  -0.028428 |    0.80935 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15385 |   0.078141 | 1.3506     |-0.00038328 |  -0.031205 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40213 | 1.7755e-05 | 0.013497   |  -0.013209 |   -0.14227 |
@@ -2759,8 +2763,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90072 |-3.6415e-05 | 0.089730   |  0.0053723 |    0.53431 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90072 |-0.00042633 | 1.0132     |  0.0082985 |  -0.024709 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91878 |     5.5054 | 3.4458     | -0.0038988 |    -1.2131 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.2759 | 731.82     |   0.030601 |  -0.034359 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7987 |     1.0146 | 0.57176    |    0.73998 | -0.0077167 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7987 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7987 |     1.0134 | 0.57221    |    0.73846 |   0.011906 |
@@ -3166,9 +3168,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.3 | 0.0000     |          0 |          0 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42527 |     16.452 | 5.1926     |   -0.14881 |   -0.87491 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11125 |       0.08 | 0.0000     |          0 |          0 |
@@ -3602,6 +3611,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       3938 |   0.082192 | 0.098614   |     1.3478 |    0.86414 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4468 |      10052 | 10397.     |     3.3038 |     16.256 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4240 |     558.41 | 477.38     |     2.9109 |      13.48 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1093 |     4499.8 | 1004.6     |   -0.72243 |   -0.27975 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4479 |     4364.9 | 1113.3     |   -0.53064 |   -0.72536 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7987 |     4516.5 | 1092.9     |   -0.65699 |   -0.56467 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2523 |     4413.4 | 1099.7     |   -0.53515 |   -0.70916 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9348 |       4240 | 1169.2     |   -0.39322 |   -0.86792 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2342 | -0.0028104 | 0.082169   |   0.015789 |    -0.7165 |
@@ -3753,5 +3769,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18333 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9773 | 0.60000    | -0.0075449 |    -1.9999 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.4078 | 1.5708     | -0.0075449 |    -1.9999 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.detdesc
index e6104d5e475277f99c7fde1eb8cba970976d3957..5f02295e8e8b4ee010788516c81ba12d25826804 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.detdesc
@@ -2665,6 +2665,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     50.427 | 27.542     |    0.26313 |   -0.76837 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     52.809 | 28.650     |    0.24801 |   -0.77548 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        435 |     -11.81 | 821.01     |   0.075573 |   -0.70884 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        447 |     60.934 | 814.87     |   -0.01722 |   -0.57991 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2348 |    -9.0822 | 726.45     |  -0.022049 |    0.12618 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2352 |     27.742 | 704.81     |  -0.019263 |    0.17504 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -3.0721 | 730.68     |   0.023899 |  -0.060548 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4278 | 2.1526e-05 | 0.0011254  |   -0.34223 |     10.635 |
@@ -2696,14 +2704,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3848 |    0.99284 | 0.18897    |  -0.051334 |     2.1846 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3848 |   0.058546 | 1.2011     |   -0.06368 |     1.0749 |
  | kickZ                                         | "Z position of magnet kick"                   |       2684 |     5183.8 | 41.274     |    -2.0165 |     6.0974 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      10004 | 0.00012795 | 0.092630   |   0.074013 |    0.48272 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      10004 | -0.0013595 | 1.0487     |   0.033632 |   0.067248 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10220 |      5.493 | 3.4423     | -0.0029491 |    -1.2128 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3458 |     1.4928 | 1.1257     |    0.02104 |    -1.3772 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        435 |    -12.241 | 820.73     |   0.077425 |   -0.71028 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        447 |      62.45 | 815.48     |  -0.017749 |   -0.58009 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3501 |  5.427e-05 | 0.045050   |   0.054328 |     2.0477 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3501 | -0.0024014 | 1.2274     |  -0.030076 |    0.59565 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        882 |    0.98798 | 0.57386    |     1.0475 |     1.2367 |
@@ -2758,8 +2764,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      16801 |     1.4973 | 1.1178     |  0.0033319 |    -1.3596 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22089 |      17.24 | 4.7865     |    -0.2214 |    -0.8257 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20683 |     17.548 | 4.6537     |   -0.27414 |   -0.73611 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2348 |    -8.9438 | 726.44     |  -0.022821 |    0.13145 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2352 |     27.653 | 704.98     |   -0.01753 |    0.16901 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      16910 | 0.00051449 | 0.045090   |   0.048168 |     2.0384 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      16910 |  0.0073714 | 1.1797     |  -0.023318 |    0.24955 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      42136 |-2.5916e-05 | 0.013516   |  -0.011715 |   -0.16957 |
@@ -2821,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90063 |-3.6641e-05 | 0.089735   |  0.0055889 |    0.53458 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90063 |-0.00039195 | 1.0132     |  0.0085552 |  -0.024308 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91868 |     5.5056 | 3.4458     | -0.0039381 |    -1.2131 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3960 |    -2.3788 | 731.89     |   0.030979 |  -0.034651 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7986 |     1.0146 | 0.57181    |    0.74011 | -0.0079597 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7986 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7986 |     1.0134 | 0.57227    |    0.73858 |   0.011517 |
@@ -3234,9 +3236,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 4.4409e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     198.82 | 94.993     |  0.0052558 |     -1.016 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42498 |     16.458 | 5.1862     |    -0.1448 |   -0.88479 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40036 |     16.669 | 5.0773     |   -0.17422 |   -0.82094 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11106 |       0.08 | 0.0000     |          0 |          0 |
@@ -3669,6 +3678,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4339 |   0.044931 | 0.076360   |     2.4925 |     6.0036 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4688 |      11487 | 12454.     |      2.768 |     9.9851 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4467 |     583.44 | 499.15     |     2.6977 |     11.271 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        882 |     4409.8 | 1009.7     |   -0.54903 |   -0.50887 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4700 |     4417.2 | 1100.4     |   -0.60169 |   -0.62157 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7986 |     4515.4 | 1093.7     |   -0.65459 |   -0.56958 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2626 |     4368.1 | 1127.7     |   -0.50006 |   -0.77782 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9323 |     4231.2 | 1171.6     |   -0.38253 |   -0.87822 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2665 | 0.00097396 | 0.11887    |   -0.13335 |    -1.1844 |
@@ -3820,5 +3836,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10877 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5862 | 0.45696    |     1.7018 |    0.89625 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4317 | 1.1963     |     1.7018 |    0.89625 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-detdesc-opt
index c0780b0e5e4e35155a0e209af67ef27e4526c659..2d9decf419b9733a4502d04a837f7ce96b3d5f65 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -2665,6 +2665,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     50.449 | 27.582     |    0.26131 |   -0.77546 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     52.831 | 28.711     |    0.24623 |   -0.78471 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        434 |    -8.5253 | 819.28     |   0.074773 |   -0.70262 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        448 |     64.174 | 816.84     |  -0.016431 |   -0.58607 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2350 |    -9.9787 | 727.39     |  -0.021875 |    0.11744 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2352 |     27.519 | 704.55     |  -0.019179 |    0.17825 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -3.4028 | 730.88     |   0.023778 |  -0.061925 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4282 | 2.2066e-05 | 0.0011302  |   -0.33743 |     10.581 |
@@ -2696,14 +2704,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3851 |    0.99266 | 0.18885    |   -0.05224 |     2.1903 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3851 |   0.060224 | 1.2011     |  -0.063875 |     1.0792 |
  | kickZ                                         | "Z position of magnet kick"                   |       2680 |     5183.9 | 41.119     |    -2.0222 |     6.1703 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      10005 | 0.00013393 | 0.092621   |    0.07449 |    0.48274 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      10005 | -0.0012294 | 1.0487     |   0.033662 |   0.066614 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10221 |     5.4941 | 3.4422     | -0.0031319 |    -1.2126 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3458 |     1.4928 | 1.1257     |    0.02104 |    -1.3772 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        434 |    -8.9171 | 818.98     |   0.076592 |   -0.70397 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        448 |     65.692 | 817.45     |  -0.016957 |   -0.58624 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3501 | 5.9983e-05 | 0.044994   |   0.056122 |     2.0437 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3501 | -0.0024585 | 1.2263     |  -0.031227 |    0.59553 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        882 |     0.9881 | 0.57331    |     1.0496 |     1.2481 |
@@ -2758,8 +2764,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      16818 |     1.4973 | 1.1178     |  0.0034028 |    -1.3595 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22115 |     17.236 | 4.7861     |   -0.22064 |     -0.826 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20686 |     17.544 | 4.6558     |   -0.27404 |   -0.73629 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2350 |    -9.8553 | 727.39     |  -0.022622 |    0.12265 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2352 |     27.436 | 704.72     |  -0.017503 |    0.17228 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      16927 | 0.00051456 | 0.045053   |   0.046286 |     2.0335 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      16927 |  0.0071805 | 1.1786     |  -0.024393 |    0.24999 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      42163 |-3.0026e-05 | 0.013507   |  -0.012889 |     -0.169 |
@@ -2821,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90073 |-3.4417e-05 | 0.089733   |  0.0054271 |     0.5344 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90073 |-0.00042743 | 1.0132     |  0.0081986 |  -0.024262 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91880 |     5.5054 | 3.4458     | -0.0039029 |     -1.213 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.7076 | 732.09     |   0.030871 |  -0.036056 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7987 |     1.0147 | 0.57191    |    0.74059 | -0.0068279 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7987 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7987 |     1.0135 | 0.57237    |    0.73914 |   0.012966 |
@@ -3234,9 +3236,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    | 1.2701e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 5.5089e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.16 | 95.185     |   0.021728 |    -1.0319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42648 |     16.455 | 5.1883     |   -0.14839 |   -0.87254 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40152 |     16.661 | 5.0786     |   -0.17312 |    -0.8211 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11142 |       0.08 | 0.0000     |          0 |          0 |
@@ -3669,6 +3678,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4340 |   0.045003 | 0.076530   |     2.4911 |      5.992 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4690 |      11477 | 12454.     |     2.7685 |      9.987 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4471 |     582.48 | 498.80     |     2.7034 |     11.316 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        882 |     4407.4 | 1011.3     |    -0.5462 |   -0.51923 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4702 |     4417.9 | 1099.4     |    -0.6026 |   -0.61748 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7987 |     4515.4 | 1093.5     |   -0.65429 |   -0.56862 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2626 |     4368.9 | 1126.5     |   -0.50734 |   -0.76913 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9339 |     4238.9 | 1173.1     |   -0.39459 |   -0.87742 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2663 | -0.0014708 | 0.11904    |   -0.11425 |    -1.2051 |
@@ -3820,5 +3836,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10877 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5862 | 0.45695    |     1.7019 |    0.89641 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4317 | 1.1963     |     1.7019 |    0.89641 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-opt
index ea13bfcecc4319990b19769abf0809f18584d04a..88b312d387cbcf1caef820b5e0a8e52a095372e0 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_with_mcchecking.ref.x86_64_v3-opt
@@ -2603,6 +2603,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     47.876 | 26.104     |    0.29649 |   -0.68299 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     50.281 | 27.272     |    0.28319 |   -0.69952 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        539 |    -10.923 | 749.29     |   0.018042 |   -0.24069 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        557 |     45.803 | 741.34     |  -0.011099 |   -0.10995 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2227 |    -12.938 | 744.95     |  -0.013933 |  -0.015581 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2248 |     25.512 | 724.10     |  -0.027112 |   0.040516 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -3.4028 | 730.88     |   0.023778 |  -0.061925 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.7547 | 726.57     |    0.01296 |   -0.07206 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       3954 | 0.00016852 | 0.0011839  |   0.024616 |     10.852 |
@@ -2634,14 +2642,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3568 |    0.98817 | 0.23966    |  -0.081308 |  -0.068933 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3568 |   -0.96517 | 1.3108     |    0.43343 |    0.96169 |
  | kickZ                                         | "Z position of magnet kick"                   |       2476 |     5180.8 | 46.724     |    -2.0685 |     5.8428 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 336
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 330
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      12406 |-6.4485e-06 | 0.092809   |   0.025237 |     0.5464 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      12406 |  -0.002257 | 1.0510     |   0.020868 |   0.059243 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12719 |     5.4935 | 3.4406     | -0.0028042 |    -1.2124 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4312 |     1.4928 | 1.1246     |   0.018893 |    -1.3747 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        539 |    -11.215 | 749.17     |   0.021012 |   -0.24299 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        557 |     46.885 | 742.03     |  -0.011105 |   -0.11052 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4436 | 9.9188e-05 | 0.039972   |   0.091913 |     1.5796 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4436 |-0.00081191 | 1.1865     |  -0.011123 |    0.52737 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1096 |     1.0009 | 0.59753    |     1.1576 |     1.7233 |
@@ -2696,8 +2702,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15504 |     1.4992 | 1.1172     | 0.00027451 |    -1.3581 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21188 |     17.077 | 4.8000     |   -0.18537 |   -0.83284 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      19725 |     17.399 | 4.6517     |   -0.24198 |   -0.74232 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2227 |    -12.818 | 744.93     |  -0.014863 |  -0.010553 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2248 |     25.409 | 724.28     |  -0.025011 |   0.034515 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15377 |   0.002282 | 0.049391   |  -0.028426 |    0.78791 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15377 |   0.078197 | 1.3493     |   0.003275 |  -0.033266 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40201 | 1.7263e-05 | 0.013490   |  -0.011327 |   -0.14381 |
@@ -2759,8 +2763,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90073 |-3.4417e-05 | 0.089733   |  0.0054271 |     0.5344 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90073 |-0.00042743 | 1.0132     |  0.0081986 |  -0.024262 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      91880 |     5.5054 | 3.4458     | -0.0039029 |     -1.213 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3961 |    -2.7076 | 732.09     |   0.030871 |  -0.036056 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4026 |     5.2086 | 727.66     |  0.0070221 |   -0.05476 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       7987 |     1.0147 | 0.57191    |    0.74059 | -0.0068279 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       7987 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       7987 |     1.0135 | 0.57237    |    0.73914 |   0.012966 |
@@ -3166,9 +3168,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.3 | 0.0000     |          0 |          0 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.83 | 96.058     |   0.037622 |   -0.97538 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42659 |     16.451 | 5.1919     |   -0.15015 |   -0.86741 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40165 |     16.655 | 5.0835     |    -0.1759 |   -0.81445 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11152 |       0.08 | 0.0000     |          0 |          0 |
@@ -3602,6 +3611,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       3938 |   0.082343 | 0.098952   |     1.3491 |    0.86301 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4464 |      10041 | 10395.     |     3.3073 |     16.288 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4238 |     557.89 | 477.12     |     2.9153 |     13.523 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1096 |     4497.7 | 1005.8     |   -0.71928 |   -0.29056 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4475 |     4365.1 | 1112.6     |   -0.53137 |   -0.72138 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       7987 |     4515.4 | 1093.5     |   -0.65429 |   -0.56862 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2530 |     4413.9 | 1098.7     |   -0.53358 |   -0.70924 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       9358 |     4245.8 | 1171.9     |   -0.40076 |   -0.87291 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2337 | -0.0020243 | 0.081929   |   0.023712 |   -0.71986 |
@@ -3753,5 +3769,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18333 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.9773 | 0.60000    | -0.0075452 |    -1.9999 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.4078 | 1.5708     | -0.0075452 |    -1.9999 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref
index b2b5400ce7569e318239b0ede5cafcef19d12861..8a5ab55eae293aad1fd96b4803e871890c2c8942 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref
@@ -1791,6 +1791,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         98 |     58.847 | 36.084     |    0.70777 |   0.036429 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         98 |      62.49 | 38.361     |    0.69518 |  -0.006898 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3029 |    -24.195 | 735.90     |   -0.01144 |   0.042759 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3095 |     27.064 | 714.48     |   -0.01037 |   0.080006 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5048 |    -6.6649 | 735.32     |   0.015589 |  -0.036052 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.4797 | 726.18     |   0.013019 |  -0.050459 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       6124 |-0.00035662 | 0.0023289  |  -0.047652 |     3.6316 |
@@ -1804,7 +1810,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       5555 |     1.0035 | 0.11564    |   -0.30457 |      10.74 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       5555 |    0.03629 | 1.1415     |   0.017759 |     0.5897 |
  | kickZ                                         | "Z position of magnet kick"                   |       3470 |     5090.7 | 41.029     |   0.090035 |     2.8541 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      68855 | 0.00043425 | 0.094259   |   0.018344 |     1.3015 |
@@ -1812,8 +1818,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      70799 |     5.5022 | 3.4473     | -0.0012261 |    -1.2134 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28653 |     17.355 | 4.8074     |   -0.25637 |    -0.7998 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26522 |     17.613 | 4.6455     |   -0.29585 |   -0.68546 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3029 |    -24.003 | 736.05     |  -0.012498 |    0.04729 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3095 |     27.048 | 714.78     | -0.0084117 |   0.077924 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54288 |-1.0536e-05 | 0.013490   |  -0.010905 |   -0.14912 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      54288 |-0.00024869 | 1.0758     | -0.0076569 |   -0.19789 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      54288 |-3.6693e-05 | 0.013438   | -0.0019418 |   -0.16591 |
@@ -1873,8 +1877,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     112793 | 2.3051e-06 | 0.091402   |  0.0093461 |    0.53352 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     112793 | -0.0003041 | 1.0303     |   0.007953 |  -0.040083 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     115381 |     5.5085 | 3.4467     | -0.0053165 |     -1.214 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5048 |     -6.145 | 736.32     |   0.020828 |  -0.016936 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.0622 | 727.11     |  0.0092068 |   -0.03559 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      10065 |     1.0436 | 0.58456    |    0.69661 |   -0.12672 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      10065 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      10065 |     1.0428 | 0.58503    |    0.69445 |   -0.11458 |
@@ -2195,9 +2197,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20384 |     86.802 | 50.715     |     1.1185 |      3.109 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         98 |     221.33 | 115.42     |     0.3526 |   -0.52094 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         98 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      52207 |     16.501 | 5.1993     |   -0.16325 |   -0.86166 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      48903 |     16.679 | 5.0785     |   -0.18002 |   -0.80049 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      13678 |       0.08 | 0.0000     |          0 |          0 |
@@ -2611,6 +2620,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5339 |   0.072136 | 0.089363   |     1.7249 |     2.3342 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6111 |      11474 | 12600.     |     2.7561 |     9.8015 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5712 |     585.21 | 518.63     |     2.8329 |     12.645 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6124 |     5031.4 | 1504.0     |   0.097077 |   -0.18301 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      10065 |     5504.2 | 1715.9     |    0.13704 |   -0.44976 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11477 |     4753.2 | 1519.7     |    0.10053 |   -0.36441 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       3771 |  0.0028406 | 0.081785   | -0.0011539 |   -0.47521 |
@@ -2707,5 +2721,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.11579 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5832 | 0.45438    |     1.7248 |    0.97481 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4396 | 1.1896     |     1.7248 |    0.97481 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.armv8.1_a
index 0e829a7dcb7b78053371dbe2f6c97d628cdf3998..872cc0a42bebbeb854d5a06342b70140b23ee958 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.armv8.1_a
@@ -1791,6 +1791,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         98 |     58.847 | 36.051     |    0.70569 |   0.035132 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         98 |      62.49 | 38.325     |    0.69281 | -0.0098522 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3030 |     -23.63 | 735.88     |  -0.012515 |   0.042949 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3094 |     27.109 | 714.60     |  -0.010556 |   0.079089 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5046 |    -6.8855 | 735.36     |   0.016203 |  -0.035778 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.4797 | 726.18     |   0.013019 |  -0.050459 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       6124 |-0.00035847 | 0.0023273  |  -0.050908 |     3.6396 |
@@ -1804,7 +1810,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       5554 |     1.0035 | 0.11565    |   -0.30517 |     10.739 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       5554 |   0.036455 | 1.1416     |   0.017367 |    0.58936 |
  | kickZ                                         | "Z position of magnet kick"                   |       3470 |     5090.8 | 41.032     |   0.088371 |     2.8527 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      68853 | 0.00044355 | 0.094250   |   0.018314 |     1.3026 |
@@ -1812,8 +1818,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      70798 |     5.5023 | 3.4474     | -0.0013065 |    -1.2134 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28646 |     17.356 | 4.8063     |   -0.25631 |   -0.79939 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26531 |      17.61 | 4.6478     |   -0.29574 |   -0.68625 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3030 |    -23.426 | 736.04     |  -0.013566 |   0.047468 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3094 |     27.091 | 714.89     | -0.0085876 |   0.076999 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54295 |-1.0646e-05 | 0.013490   |  -0.011345 |   -0.14701 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      54295 |-0.00021734 | 1.0759     | -0.0083096 |   -0.19523 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      54295 |-3.3852e-05 | 0.013440   |-0.00083677 |   -0.16644 |
@@ -1873,8 +1877,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     112776 |-3.5469e-07 | 0.091390   |  0.0092074 |     0.5336 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     112776 |-0.00035823 | 1.0301     |  0.0077722 |  -0.040514 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     115361 |     5.5082 | 3.4468     | -0.0052444 |     -1.214 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5046 |    -6.3674 | 736.36     |    0.02145 |  -0.016643 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.0622 | 727.11     |  0.0092068 |   -0.03559 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      10063 |     1.0436 | 0.58456    |    0.69678 |   -0.12619 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      10063 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      10063 |     1.0427 | 0.58503    |    0.69452 |   -0.11436 |
@@ -2195,9 +2197,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20384 |     86.802 | 50.715     |     1.1185 |      3.109 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         98 |     221.33 | 115.42     |     0.3526 |   -0.52094 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         98 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      52214 |     16.501 | 5.1992     |   -0.16307 |   -0.86176 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      48893 |      16.68 | 5.0787     |   -0.18034 |   -0.80039 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      13679 |       0.08 | 0.0000     |          0 |          0 |
@@ -2611,6 +2620,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5338 |   0.072141 | 0.089372   |     1.7232 |     2.3239 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6111 |      11474 | 12600.     |     2.7561 |     9.8013 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5712 |     585.35 | 518.63     |     2.8321 |     12.641 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6124 |     5029.9 | 1503.2     |   0.096717 |   -0.18319 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      10063 |     5500.2 | 1714.4     |    0.14206 |   -0.44094 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11478 |     4753.3 | 1520.2     |    0.10116 |    -0.3647 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       3771 |  0.0027959 | 0.081818   | -0.0016052 |   -0.47985 |
@@ -2707,5 +2721,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.11579 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5831 | 0.45437    |     1.7248 |    0.97497 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4396 | 1.1895     |     1.7248 |    0.97497 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.detdesc
index 2a85dfb011097e512184303e58a6a4f8289c7a24..84398c071d7ae3b7eef6204c94e26c3dd6dc940e 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.detdesc
@@ -1822,6 +1822,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         98 |     58.643 | 35.962     |    0.69124 |  0.0010075 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         98 |     62.173 | 38.074     |    0.67459 |  -0.059845 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3025 |     -23.74 | 737.39     |  -0.021532 |   0.038867 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3068 |     30.199 | 711.73     | -0.0088714 |   0.095781 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5048 |    -6.6649 | 735.32     |   0.015589 |  -0.036052 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.4797 | 726.18     |   0.013019 |  -0.050459 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       6093 |-1.3782e-05 | 0.0023284  |   -0.18713 |     3.5754 |
@@ -1835,7 +1841,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       5527 |     1.0042 | 0.11811    |   -0.17397 |     11.386 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       5527 |  -0.024321 | 1.1365     | -0.0060242 |    0.55688 |
  | kickZ                                         | "Z position of magnet kick"                   |       3451 |     5090.5 | 36.063     |-0.00098556 |     2.1733 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      68512 | 1.0509e-05 | 0.093924   |   0.019287 |     1.2765 |
@@ -1843,8 +1849,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      70432 |     5.5018 | 3.4472     | -0.0012442 |    -1.2133 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28454 |     17.339 | 4.8044     |   -0.25144 |   -0.80374 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26497 |     17.611 | 4.6461     |   -0.29656 |   -0.68668 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3025 |    -23.479 | 737.49     |  -0.022818 |   0.043175 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3068 |     30.186 | 711.94     | -0.0064685 |   0.093546 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54071 |-2.4597e-05 | 0.013485   | -0.0045079 |   -0.16975 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      54071 | -0.0014666 | 1.0752     | -0.0060968 |   -0.19987 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      54071 | 4.7715e-06 | 0.013385   | 5.0524e-05 |   -0.14668 |
@@ -1904,8 +1908,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     112793 | 2.3051e-06 | 0.091402   |  0.0093461 |    0.53352 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     112793 | -0.0003041 | 1.0303     |   0.007953 |  -0.040083 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     115381 |     5.5085 | 3.4467     | -0.0053165 |     -1.214 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5048 |     -6.145 | 736.32     |   0.020828 |  -0.016936 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.0622 | 727.11     |  0.0092068 |   -0.03559 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      10065 |     1.0436 | 0.58456    |    0.69661 |   -0.12672 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      10065 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      10065 |     1.0428 | 0.58503    |    0.69445 |   -0.11458 |
@@ -2242,9 +2244,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20384 |     86.802 | 50.715     |     1.1185 |      3.109 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         98 |     220.51 | 114.59     |    0.35672 |   -0.48901 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         98 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      52199 |     16.503 | 5.1939     |   -0.15962 |   -0.86847 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      48867 |     16.683 | 5.0750     |   -0.17903 |   -0.80327 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      13663 |       0.08 | 0.0000     |          0 |          0 |
@@ -2658,6 +2667,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5339 |   0.068782 | 0.088504   |     1.7803 |     2.5172 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6080 |      11422 | 12525.     |      2.759 |     9.8739 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5693 |     584.11 | 516.87     |      2.842 |     12.721 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6093 |     5027.7 | 1487.8     |   0.052655 |    -0.1915 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      10065 |     5504.2 | 1715.9     |    0.13704 |   -0.44976 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11456 |     4768.4 | 1541.0     |    0.12139 |   -0.37497 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       3754 |   -0.40555 | 0.0000     |          0 |          0 |
@@ -2754,5 +2768,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |     0.1106 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5901 | 0.46031    |     1.6721 |    0.79601 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4213 | 1.2051     |     1.6721 |    0.79601 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-detdesc-opt
index 267377a2ec05a513870d7903cda0084e4bcf7b92..fe7b4d6396bf45f510173e1f503727b465ebff6a 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -1822,6 +1822,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         98 |     58.633 | 35.994     |    0.69011 | -0.0096247 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         98 |     62.153 | 38.105     |    0.67336 |  -0.067436 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3021 |     -24.21 | 736.85     |  -0.021956 |   0.037834 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3070 |     28.151 | 712.00     | -0.0046501 |   0.092022 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5046 |    -7.2275 | 735.57     |   0.016439 |   -0.03712 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.4797 | 726.18     |   0.013019 |  -0.050459 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       6091 |-1.6253e-05 | 0.0023247  |   -0.19574 |     3.5763 |
@@ -1835,7 +1841,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       5526 |     1.0041 | 0.11790    |   -0.20721 |     11.218 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       5526 |  -0.023895 | 1.1369     | -0.0010058 |    0.57747 |
  | kickZ                                         | "Z position of magnet kick"                   |       3447 |     5090.7 | 36.092     |  0.0081136 |     2.2354 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      68483 | 3.0665e-05 | 0.093988   |   0.021991 |     1.2859 |
@@ -1843,8 +1849,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      70407 |     5.5017 | 3.4472     | -0.0012552 |    -1.2133 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28451 |     17.336 | 4.8039     |    -0.2538 |   -0.79309 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26507 |     17.606 | 4.6475     |   -0.29587 |   -0.68736 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3021 |    -23.937 | 736.95     |  -0.023116 |   0.042234 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3070 |     28.134 | 712.21     | -0.0022822 |   0.089798 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54087 |-2.6587e-05 | 0.013479   | -0.0019617 |   -0.18423 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      54087 | -0.0016122 | 1.0751     | -0.0061922 |    -0.2003 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      54087 | 3.8826e-06 | 0.013385   | 0.00018729 |   -0.14728 |
@@ -1904,8 +1908,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     112777 | 1.2414e-06 | 0.091392   |  0.0092466 |    0.53365 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     112777 |-0.00035912 | 1.0302     |  0.0076963 |  -0.040191 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     115363 |     5.5083 | 3.4468     | -0.0052476 |     -1.214 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5046 |    -6.7063 | 736.57     |   0.021692 |  -0.018013 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.0622 | 727.11     |  0.0092068 |   -0.03559 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      10063 |     1.0436 | 0.58467    |     0.6972 |   -0.12572 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      10063 |       0.05 | 6.5854e-10 |-1.1541e+08 | 1.8079e+16 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      10063 |     1.0428 | 0.58515    |    0.69498 |   -0.11378 |
@@ -2242,9 +2244,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20384 |     86.802 | 50.715     |     1.1185 |      3.109 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         98 |     220.71 | 114.48     |    0.35556 |   -0.51725 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         98 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      52369 |     16.498 | 5.1974     |   -0.16322 |    -0.8571 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      48987 |     16.677 | 5.0737     |   -0.17564 |   -0.81045 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      13701 |       0.08 | 1.3171e-09 |-7.7781e+07 | 9.3737e+15 |
@@ -2658,6 +2667,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5341 |   0.068806 | 0.088704   |     1.7879 |     2.5471 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6078 |      11420 | 12527.     |     2.7586 |     9.8701 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5693 |     583.66 | 516.69     |     2.8452 |     12.747 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6091 |     5030.2 | 1489.1     |   0.057229 |   -0.18569 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      10063 |     5500.4 | 1715.3     |    0.14147 |   -0.44362 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11468 |     4770.2 | 1537.1     |    0.10749 |   -0.38339 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       3750 |  -0.094414 | 0.0000     |          0 |          0 |
@@ -2754,5 +2768,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.11059 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5901 | 0.46031    |     1.6722 |    0.79617 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4213 | 1.2051     |     1.6722 |    0.79617 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-opt
index 51db81bbdaad0a238d7ea304888635cca5abd5d5..a3458e289231016e40873b6893f0cf32aecd8890 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_mcchecking.ref.x86_64_v3-opt
@@ -1791,6 +1791,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         98 |     58.816 | 36.049     |    0.70001 |   0.018461 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         98 |     62.449 | 38.333     |    0.68732 |  -0.028247 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3025 |    -25.103 | 735.70     |  -0.013281 |   0.041458 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3095 |     25.489 | 714.59     | -0.0077188 |   0.078683 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5046 |    -7.2275 | 735.57     |   0.016439 |   -0.03712 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.4797 | 726.18     |   0.013019 |  -0.050459 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       6120 |-0.00035976 | 0.0023300  |  -0.051641 |      3.634 |
@@ -1804,7 +1810,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       5551 |     1.0033 | 0.11540    |   -0.34134 |     10.566 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       5551 |   0.037263 | 1.1399     |   0.020162 |    0.59996 |
  | kickZ                                         | "Z position of magnet kick"                   |       3466 |     5090.9 | 40.959     |   0.092358 |     2.7921 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      68804 | 0.00046451 | 0.094267   |   0.020884 |     1.3023 |
@@ -1812,8 +1818,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      70748 |     5.5019 | 3.4474     |  -0.001239 |    -1.2134 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      28659 |     17.352 | 4.8080     |   -0.25868 |   -0.78989 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26533 |     17.606 | 4.6441     |   -0.29105 |   -0.69779 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       3025 |    -24.917 | 735.87     |  -0.014259 |   0.046067 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3095 |     25.468 | 714.87     |   -0.00573 |   0.076728 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      54309 |-9.9799e-06 | 0.013480   | -0.0087005 |   -0.16775 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      54309 |-0.00025595 | 1.0753     | -0.0085409 |   -0.20258 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      54309 |-3.3991e-05 | 0.013438   | 2.1766e-05 |   -0.16514 |
@@ -1873,8 +1877,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     112777 | 1.2414e-06 | 0.091392   |  0.0092466 |    0.53365 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     112777 |-0.00035912 | 1.0302     |  0.0076963 |  -0.040191 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     115363 |     5.5083 | 3.4468     | -0.0052476 |     -1.214 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       5046 |    -6.7063 | 736.57     |   0.021692 |  -0.018013 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5017 |     9.0622 | 727.11     |  0.0092068 |   -0.03559 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      10063 |     1.0436 | 0.58467    |     0.6972 |   -0.12572 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      10063 |       0.05 | 6.5854e-10 |-1.1541e+08 | 1.8079e+16 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      10063 |     1.0428 | 0.58515    |    0.69498 |   -0.11378 |
@@ -2195,9 +2197,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      20384 |     86.802 | 50.715     |     1.1185 |      3.109 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         98 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         98 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         98 |     221.84 | 115.86     |    0.36614 |    -0.5072 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         98 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         98 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      52385 |     16.497 | 5.2009     |   -0.16525 |   -0.85258 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      48988 |     16.677 | 5.0769     |   -0.17855 |   -0.80387 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      13710 |       0.08 | 0.0000     |          0 |          0 |
@@ -2611,6 +2620,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       5339 |   0.072138 | 0.089413   |     1.7244 |     2.3303 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       6107 |      11473 | 12600.     |     2.7571 |     9.8088 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       5710 |     585.17 | 518.50     |     2.8337 |     12.659 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       6120 |     5032.4 | 1502.4     |    0.09753 |   -0.17618 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      10063 |     5500.4 | 1715.3     |    0.14147 |   -0.44362 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11490 |     4763.7 | 1525.3     |   0.095847 |   -0.37715 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       3767 |  0.0017474 | 0.082198   |  -0.017108 |   -0.46407 |
@@ -2707,5 +2721,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.11579 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5831 | 0.45437    |     1.7248 |    0.97497 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4396 | 1.1895     |     1.7248 |    0.97497 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref
index 5723aae82623e7021ac450190f0751baaf25f7ae..fdf99e98637e7f0d757ff79acffeedf5025ee8d3 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref
@@ -1413,6 +1413,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        500 |     14.596 | 8.5947     |    0.86433 |     1.4562 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        500 |      15.05 | 8.8837     |    0.83608 |     1.3348 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       4511 |    -97.409 | 469.03     |    -0.3731 |     0.9043 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3014 |     110.63 | 474.39     |    0.93987 |     2.4641 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       7245 |    -95.913 | 429.76     |   -0.29974 |     1.3719 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5047 |     78.376 | 438.04     |    0.94062 |     3.4656 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       7525 | 0.00033026 | 0.0019455  |   -0.31185 |     3.7147 |
@@ -1426,7 +1432,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       2752 |    0.95005 | 0.20115    |   -0.31045 |     2.6578 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       2752 |    0.15825 | 1.7590     |  -0.041125 |   -0.27011 |
  | kickZ                                         | "Z position of magnet kick"                   |       2402 |     5093.1 | 55.332     |    0.16151 |     2.1298 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      69490 | 0.00083553 | 0.14228    |  -0.010527 |  -0.049008 |
@@ -1434,8 +1440,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      78239 |     5.4609 | 3.4362     |   0.013182 |    -1.2034 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      16663 |     18.989 | 4.8548     |    -0.7083 |   -0.79769 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26364 |     18.171 | 4.5514     |   -0.23245 |    -1.0492 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       4511 |    -97.645 | 468.80     |   -0.37623 |    0.90323 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3014 |     110.57 | 474.69     |    0.93869 |     2.4697 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40719 | -0.0001782 | 0.015118   |   0.058968 |     0.8975 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      40719 |   -0.01427 | 1.1964     |   0.068931 |    0.64525 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      40719 | -0.0001196 | 0.014385   |-0.00091008 |    0.45089 |
@@ -1495,8 +1499,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     116318 | 0.00045737 | 0.11955    |  -0.019531 |   -0.46475 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     116318 |  0.0052146 | 1.3967     |  -0.019925 |   -0.52075 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127407 |     5.4681 | 3.4378     |   0.012951 |    -1.2089 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       7245 |     -96.01 | 429.63     |   -0.30162 |     1.3726 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5047 |     78.115 | 438.00     |    0.93819 |     3.4706 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      12292 |     1.7652 | 0.89051    |    0.30727 |   -0.51232 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      12292 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      12292 |      1.764 | 0.89185    |     0.3071 |   -0.51045 |
@@ -1734,9 +1736,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      47000 |     56.387 | 35.554     |     1.2866 |     5.8281 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        500 |     138.34 | 75.838     |    0.69429 |    0.53699 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        500 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |     108202 |     16.371 | 5.5795     |  -0.018885 |    -1.3331 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |     137929 |     16.294 | 5.0734     |   0.081213 |     -1.079 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      48453 |       0.08 | 9.3132e-10 |-1.3422e+08 |         -3 |
@@ -2046,6 +2055,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4804 |    0.17407 | 0.11416    |    0.30341 |    -1.1452 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       7467 |      15881 | 14037.     |     2.1861 |     6.0422 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       7357 |     687.31 | 629.03     |     3.3417 |     18.125 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       7525 |     2721.9 | 1109.3     |    0.51656 |   -0.10232 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      12292 |     2837.3 | 1182.9     |    0.46507 |   -0.36158 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      43386 |     2698.8 | 1090.9     |    0.53267 |  -0.028797 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       6314 |   0.036571 | 0.058860   |    0.91114 |    -2.8038 |
@@ -2142,5 +2156,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |       1428 |     1.8264 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |        116 |     4.0409 | 0.55400    |    0.88631 |    -4.4529 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |        117 |    -2.0835 | 1.4310     |     1.9152 |     2.4199 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.armv8.1_a
index ddcacb0c284b7dab8b3fb4074bf5103f65516420..7b79d1213d1a9d7225d4d75a266b7ce4174a1ad5 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.armv8.1_a
@@ -1412,6 +1412,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        500 |     14.598 | 8.5940     |    0.86394 |     1.4568 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        500 |     15.052 | 8.8829     |    0.83574 |     1.3355 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       4511 |    -97.409 | 469.03     |    -0.3731 |     0.9043 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3015 |     110.52 | 474.35     |    0.94038 |      2.465 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       7245 |    -95.913 | 429.76     |   -0.29974 |     1.3719 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5048 |     78.333 | 438.01     |    0.94086 |     3.4663 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       7526 | 0.00033023 | 0.0019455  |   -0.31171 |      3.714 |
@@ -1425,7 +1431,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       2752 |    0.95005 | 0.20115    |   -0.31045 |     2.6578 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       2752 |    0.15825 | 1.7590     |  -0.041125 |   -0.27011 |
  | kickZ                                         | "Z position of magnet kick"                   |       2402 |     5093.1 | 55.332     |    0.16151 |     2.1298 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      69497 | 0.00084321 | 0.14230    |  -0.010473 |  -0.048391 |
@@ -1433,8 +1439,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      78249 |     5.4609 | 3.4362     |    0.01318 |    -1.2034 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      16663 |     18.991 | 4.8542     |   -0.70931 |   -0.79595 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26370 |     18.172 | 4.5514     |   -0.23275 |    -1.0491 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       4511 |    -97.645 | 468.80     |   -0.37623 |    0.90323 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3015 |     110.46 | 474.65     |     0.9392 |     2.4706 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40726 |-0.00017881 | 0.015117   |   0.059061 |    0.89731 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      40726 |  -0.014294 | 1.1963     |   0.068988 |    0.64505 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      40726 |-0.00011953 | 0.014385   |-0.00080037 |    0.45067 |
@@ -1494,8 +1498,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     116326 | 0.00044874 | 0.11954    |  -0.019597 |   -0.46453 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     116326 |  0.0051232 | 1.3965     |  -0.019987 |    -0.5206 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127417 |     5.4683 | 3.4378     |   0.012827 |    -1.2089 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       7245 |     -96.01 | 429.63     |   -0.30162 |     1.3726 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5048 |     78.067 | 437.97     |    0.93846 |     3.4713 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      12293 |     1.7647 | 0.89057    |    0.30777 |   -0.51214 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      12293 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      12293 |     1.7636 | 0.89189    |    0.30766 |   -0.51016 |
@@ -1733,9 +1735,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      47000 |     56.387 | 35.554     |     1.2866 |     5.8281 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        500 |     138.34 | 75.838     |    0.69429 |    0.53699 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        500 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |     108202 |     16.371 | 5.5795     |  -0.018885 |    -1.3331 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |     137929 |     16.294 | 5.0734     |   0.081213 |     -1.079 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      48453 |       0.08 | 9.3132e-10 |-1.9573e+08 |-5.2504e+13 |
@@ -2045,6 +2054,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4805 |     0.1741 | 0.11418    |    0.30302 |    -1.1459 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       7468 |      15883 | 14037.     |     2.1854 |     6.0391 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       7358 |      687.3 | 628.99     |      3.342 |     18.128 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       7526 |     2721.9 | 1109.3     |    0.51675 |   -0.10203 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      12293 |     2836.9 | 1182.0     |    0.46395 |     -0.362 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      43386 |     2698.8 | 1090.9     |    0.53267 |  -0.028797 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       6315 |   0.036582 | 0.058890   |    0.90679 |     -2.795 |
@@ -2141,5 +2155,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |       1428 |     1.8264 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |        116 |     4.0409 | 0.55400    |    0.88632 |    -4.4529 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |        117 |    -2.0835 | 1.4310     |     1.9152 |     2.4199 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.detdesc
index dad56dbb271cc9904a6f2e7dcd295b66bc8fb748..bd4e8b8dee860a8360f0ab781a5f32886bc37934 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.detdesc
@@ -1378,6 +1378,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        500 |      3.112 | 2.6122     |     1.2039 |     1.9655 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        500 |      3.146 | 2.6429     |     1.2189 |     2.0588 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       1251 |    -43.995 | 497.68     |   -0.46344 |     1.6355 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        322 |     480.12 | 631.08     |     0.5179 |   -0.58804 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3533 |    -28.266 | 465.90     |   -0.30355 |     2.5576 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2116 |     172.81 | 449.89     |    0.79802 |     4.0699 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       1573 |-0.00010733 | 0.0021691  |   -0.20889 |     3.0972 |
@@ -1391,7 +1397,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |        304 |    0.94792 | 0.18478    |   -0.32314 |     2.1191 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |        304 |   -0.79808 | 1.8934     |     0.3372 |   -0.30932 |
  | kickZ                                         | "Z position of magnet kick"                   |        242 |     5088.6 | 47.759     |    0.72595 |     3.1781 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      13600 | -0.0025088 | 0.17253    |   0.011098 |    -0.3912 |
@@ -1399,8 +1405,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      15747 |     5.4209 | 3.5026     |   0.037946 |    -1.2502 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |       2939 |     17.804 | 5.2365     |   -0.44807 |    -1.2582 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |       6409 |     16.906 | 4.4978     |    0.13572 |    -1.0573 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       1251 |    -43.849 | 497.50     |   -0.46362 |     1.6393 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        322 |        480 | 631.62     |    0.51647 |   -0.59039 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |       8492 | 0.00010928 | 0.022103   |   0.047047 |   -0.39735 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |       8492 |  0.0071622 | 1.7497     |   0.045843 |   -0.48432 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |       8492 | 0.00039849 | 0.022128   |    -0.1301 |   -0.26924 |
@@ -1460,8 +1464,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      49594 | -0.0014445 | 0.13151    |  0.0039649 |   -0.47434 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      49594 |  -0.015895 | 1.5334     |  0.0034844 |   -0.54557 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      55990 |     5.5016 | 3.4745     |  0.0080347 |    -1.2464 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3533 |    -28.314 | 465.87     |   -0.30258 |     2.5634 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2116 |     172.16 | 450.19     |    0.79259 |     4.0776 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       5649 |     1.9209 | 0.97795    |    0.18838 |   -0.73513 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       5649 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       5649 |     1.9175 | 0.97860    |    0.18406 |   -0.73715 |
@@ -1699,9 +1701,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      47000 |     56.387 | 35.554     |     1.2866 |     5.8281 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        500 |      127.5 | 70.467     |    0.70758 |    0.60461 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        500 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |     103086 |     16.412 | 5.5176     |   0.010592 |    -1.3619 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |     124144 |     16.381 | 4.9151     |   0.094974 |    -1.0029 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      43989 |       0.08 | 0.0000     |          0 |          0 |
@@ -1996,6 +2005,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |        436 |    0.24664 | 0.10378    |   -0.28474 |    -1.0036 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       1565 |      12948 | 11363.     |     2.3874 |     7.6101 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       1558 |     709.17 | 571.53     |     2.7947 |     13.135 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       1573 |       2760 | 1110.5     |    0.48506 |   -0.15526 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       5649 |       3200 | 1265.4     |    0.19972 |    -0.7718 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      34170 |       2701 | 1091.3     |    0.52158 |  -0.067901 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       1260 |  -0.039972 | 0.081831   |   -0.96289 |    -4.4897 |
@@ -2092,5 +2106,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |        184 |    0.63011 | 0.21107    |    -13.232 |    -255.65 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |         19 |     7.3443 | 0.0000     |          0 |          0 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |         19 |    -2.0163 | 0.53870    |    -3.3733 |    -3.5649 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-detdesc-opt
index a3e82555d287c16e436ac2e5eaeaabbb08249092..6aa3d8c02234a7849bb0e15245e655e0496f29e7 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-detdesc-opt
@@ -1382,6 +1382,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        500 |      3.108 | 2.6047     |     1.2079 |     1.9996 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        500 |      3.142 | 2.6363     |      1.228 |     2.1274 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       1248 |    -44.511 | 496.25     |   -0.48773 |      1.625 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        323 |     478.37 | 631.02     |    0.52171 |   -0.58559 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3533 |    -28.513 | 465.99     |   -0.30246 |     2.5534 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2117 |     172.81 | 449.81     |    0.79801 |     4.0717 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       1571 |-0.00011955 | 0.0021807  |   -0.25135 |     3.2222 |
@@ -1395,7 +1401,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |        304 |    0.94792 | 0.18478    |   -0.32314 |     2.1191 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |        304 |   -0.79808 | 1.8934     |     0.3372 |   -0.30932 |
  | kickZ                                         | "Z position of magnet kick"                   |        242 |     5088.4 | 47.952     |    0.71767 |     3.1099 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      13582 |  -0.002521 | 0.17242    |   0.011684 |   -0.38935 |
@@ -1403,8 +1409,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      15726 |     5.4215 | 3.5022     |   0.037448 |      -1.25 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |       2941 |     17.809 | 5.2388     |   -0.45069 |    -1.2563 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |       6407 |     16.916 | 4.4957     |    0.13561 |    -1.0601 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       1248 |    -44.351 | 496.09     |   -0.48786 |     1.6287 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |        323 |     478.19 | 631.59     |    0.52041 |    -0.5881 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |       8492 | 0.00011964 | 0.022109   |   0.043322 |   -0.40042 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |       8492 |  0.0091424 | 1.7517     |     0.0466 |   -0.47865 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |       8492 |  0.0004211 | 0.022153   |   -0.13055 |   -0.27115 |
@@ -1464,8 +1468,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      49604 | -0.0014265 | 0.13150    |    0.00395 |   -0.47468 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      49604 |   -0.01573 | 1.5332     |  0.0034598 |   -0.54572 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      55999 |     5.5019 | 3.4745     |  0.0078017 |    -1.2464 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       3533 |    -28.561 | 465.97     |   -0.30151 |      2.559 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       2117 |     172.17 | 450.11     |     0.7925 |     4.0795 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       5650 |     1.9205 | 0.97793    |    0.18907 |   -0.73475 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |       5650 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       5650 |     1.9172 | 0.97859    |    0.18462 |   -0.73687 |
@@ -1703,9 +1705,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      47000 |     56.387 | 35.554     |     1.2866 |     5.8281 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        500 |     128.08 | 70.785     |    0.70745 |    0.61847 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        500 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |     103605 |     16.416 | 5.5188     |  0.0085204 |    -1.3617 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |     124862 |     16.381 | 4.9148     |   0.093069 |   -0.99872 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      44213 |       0.08 | 0.0000     |          0 |          0 |
@@ -2000,6 +2009,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |        434 |    0.24702 | 0.10410    |     -0.292 |    -1.0128 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       1563 |      12961 | 11368.     |     2.3841 |     7.5934 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       1556 |     708.83 | 571.96     |     2.7936 |     13.114 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       1571 |     2765.5 | 1111.0     |    0.47991 |   -0.15812 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       5650 |     3205.3 | 1262.5     |    0.19777 |    -0.7698 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      34207 |     2710.6 | 1091.1     |    0.52298 |  -0.074228 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       1258 |  -0.047064 | 0.085777   |   -0.83833 |    -4.0893 |
@@ -2096,5 +2110,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |        179 |    0.57542 | 0.23761    |    -7.3439 |    -134.74 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |         19 |     6.0252 | 0.0000     |          0 |          0 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |         19 |    -1.8355 | 0.92034    |    0.35446 |   -0.57333 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-opt
index d5ada9a578419d343e6ad93b1e98b6d546e66375..f128e4b990bbaf0e0730c59d934257d632029144 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_pr_kf_without_UT_with_monitoring_2022.ref.x86_64_v3-opt
@@ -1414,6 +1414,12 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |        500 |     14.616 | 8.6249     |    0.88239 |     1.5443 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |        500 |      15.07 | 8.9132     |    0.85318 |     1.4171 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 4
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       4516 |    -97.537 | 468.96     |   -0.37284 |    0.90333 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3019 |     111.25 | 475.21     |    0.94381 |     2.4568 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       7245 |    -95.913 | 429.76     |   -0.29974 |     1.3719 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5047 |     78.326 | 438.05     |    0.94082 |     3.4651 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 11
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx for dx==0                          | "Velo-T dtx for dx==0"                        |       7535 | 0.00032891 | 0.0019462  |   -0.32018 |     3.7259 |
@@ -1427,7 +1433,7 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioTToLong                         | "curvature ratio T to Long"                   |       2757 |    0.95019 | 0.20113    |    -0.3107 |     2.6555 |
  | curvatureRatioTToLongPull                     | "curvature ratio T to Long pull"              |       2757 |    0.15737 | 1.7625     |  -0.042733 |   -0.26105 |
  | kickZ                                         | "Z position of magnet kick"                   |       2406 |     5093.3 | 55.492     |    0.18401 |     2.1701 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 225
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 221
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
  | Long/FTResidual                               | "FTresidual (rms-unbiased)"                   |      69590 | 0.00080904 | 0.14230    |  -0.010167 |  -0.049776 |
@@ -1435,8 +1441,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitFTLayers                              | "Hit FT layers"                               |      78344 |     5.4613 | 3.4361     |   0.013025 |    -1.2034 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      16704 |      18.99 | 4.8551     |   -0.70932 |   -0.79639 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      26385 |     18.177 | 4.5520     |   -0.23358 |    -1.0508 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       4516 |    -97.759 | 468.74     |     -0.376 |    0.90238 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       3019 |     111.18 | 475.51     |    0.94281 |     2.4629 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      40775 |-0.00017982 | 0.015119   |   0.063662 |     0.8874 |
  | Long/VPXresidualPull                          | "VPX residual pull"                           |      40775 |  -0.014493 | 1.1968     |   0.071355 |    0.64546 |
  | Long/VPYResidual                              | "VPYresidual (rms-unbiased)"                  |      40775 | -0.0001211 | 0.014381   | -0.0002862 |    0.44766 |
@@ -1496,8 +1500,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |     116318 | 0.00045737 | 0.11955    |  -0.019563 |   -0.46457 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |     116318 |  0.0052129 | 1.3966     |   -0.01993 |   -0.52063 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |     127407 |     5.4682 | 3.4378     |   0.012897 |    -1.2089 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       7245 |     -96.01 | 429.63     |   -0.30162 |     1.3726 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       5047 |     78.061 | 438.01     |     0.9384 |     3.4701 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |      12292 |      1.765 | 0.89053    |    0.30738 |   -0.51203 |
  | Ttrack/chi2PerDofMatch                        | "chi/dof upstream-downstream match"           |      12292 |       0.05 | 0.0000     |          0 |          0 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |      12292 |     1.7638 | 0.89184    |    0.30727 |   -0.51005 |
@@ -1735,9 +1737,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
 TransposeRawBanks_d381aaa1             INFO 1D histograms in directory "TransposeRawBanks_d381aaa1" : 1
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | VP                                            | "VP"                                          |      47000 |     56.387 | 35.554     |     1.2866 |     5.8281 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |        500 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |        500 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |        500 |     138.98 | 76.265     |    0.70822 |    0.61086 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |        500 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |        500 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |     108773 |     16.365 | 5.5821     |  -0.019565 |    -1.3311 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |     138661 |     16.296 | 5.0736     |   0.078702 |    -1.0758 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      48701 |       0.08 | 0.0000     |          0 |          0 |
@@ -2047,6 +2056,11 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4819 |    0.17442 | 0.11423    |     0.2977 |    -1.1509 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       7477 |      15874 | 14033.     |     2.1863 |      6.046 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       7366 |     686.79 | 628.52     |     3.3469 |     18.176 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       7535 |     2727.7 | 1106.2     |    0.51347 |   -0.11349 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |      12292 |     2842.4 | 1178.4     |    0.46677 |   -0.36069 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      43446 |     2702.8 | 1088.8     |    0.53788 |  -0.026094 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Velo-T/dtx pull vs qop                        | "Velo-T dtx pull vs qop"                      |       6318 |   0.036511 | 0.059146   |    0.87123 |    -2.6855 |
@@ -2143,5 +2157,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |       1375 |     1.9543 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |        112 |     4.0558 | 0.54859    |     0.9019 |    -4.7232 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |        113 |    -2.1093 | 1.4299     |     1.9558 |     2.5337 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref
index 9cd33a0af1967d21733a189d015bb3f814cacf82..888c00d547f341af87d3f7a04161a67f107b2242 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref
@@ -2591,6 +2591,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     50.045 | 27.531     |    0.31274 |   -0.67509 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     52.663 | 28.905     |    0.29797 |   -0.71844 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        527 |    -1.9213 | 764.38     | -0.0043641 |   -0.31274 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        530 |     28.349 | 776.63     |  -0.028721 |   -0.23025 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2323 |    -11.209 | 744.66     |  -0.012285 |  -0.011372 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2364 |     21.309 | 718.35     |  -0.023145 |   0.067863 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4015 |    -3.3944 | 732.96     |   0.026633 |  -0.062819 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     7.1752 | 728.12     |   0.010529 |  -0.079069 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4045 |  0.0001648 | 0.0012200  |   0.081954 |     11.219 |
@@ -2622,14 +2630,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3616 |    0.98796 | 0.23661    |   -0.03389 |   0.032358 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3616 |   -0.97628 | 1.3688     |    0.36958 |    0.74689 |
  | kickZ                                         | "Z position of magnet kick"                   |       2579 |     5178.9 | 49.753     |    -1.9734 |     5.4392 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11899 |-0.00023699 | 0.088763   |   -0.01709 |    0.10854 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11899 | -0.0014035 | 1.0785     | -0.0062464 |  -0.086519 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12256 |     5.4949 | 3.4412     | -0.0031246 |    -1.2122 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4153 |     1.4929 | 1.1252     |   0.019721 |     -1.376 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        527 |    -2.3624 | 764.34     |-0.00072515 |    -0.3177 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        530 |     29.264 | 776.54     |  -0.026743 |   -0.23337 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4247 | 0.00015776 | 0.037669   |   0.074005 |     1.8163 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4247 |  0.0080292 | 1.2431     |   0.033666 |    0.12442 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1057 |     1.0849 | 0.63163    |     1.0388 |     1.2394 |
@@ -2684,8 +2690,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15855 |     1.4995 | 1.1172     | 0.00012227 |    -1.3581 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21923 |      17.15 | 4.8202     |   -0.21304 |   -0.81073 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20398 |     17.457 | 4.6602     |   -0.25352 |   -0.73992 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2323 |    -11.126 | 744.65     |  -0.012508 | -0.0077833 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2364 |     21.155 | 718.48     |  -0.021504 |   0.063906 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15553 |  0.0022304 | 0.045906   |  -0.046318 |    0.70849 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15553 |   0.087833 | 1.4374     |   0.002595 |  -0.097963 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41655 |-0.00028726 | 0.013792   |  0.0048007 | -0.0052323 |
@@ -2747,8 +2751,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90775 |-0.00013594 | 0.085994   |  -0.001606 |    0.12114 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90775 |-0.00071827 | 1.0474     |  0.0021546 |   -0.11907 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      93060 |     5.5059 | 3.4457     | -0.0042338 |    -1.2129 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4015 |    -2.7161 | 734.12     |   0.033718 |  -0.038109 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     6.6638 | 729.20     |   0.004707 |  -0.062058 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       8096 |     1.1057 | 0.64522    |     1.0279 |     1.2528 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       8096 |     1.1057 | 0.64822    |     1.0402 |      1.383 |
  | Ttrack/eta                                    | "eta"                                         |       8096 |     2.4242 | 0.83440    |    0.51138 |   -0.32581 |
@@ -3150,9 +3152,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5527e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42522 |     16.452 | 5.1928     |   -0.14905 |   -0.87484 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11123 |       0.08 | 0.0000     |          0 |          0 |
@@ -3586,6 +3595,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4028 |    0.09252 | 0.10456    |      1.187 |    0.32518 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4675 |      10250 | 10574.     |     3.1735 |     15.043 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4427 |     554.56 | 473.90     |     2.9172 |     13.728 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1057 |     4466.4 | 998.34     |   -0.65014 |   -0.36345 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4687 |     4388.7 | 1104.0     |    -0.5627 |   -0.69403 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       8096 |     4513.3 | 1094.4     |   -0.64904 |   -0.58827 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2551 |     4417.7 | 1097.1     |   -0.53449 |   -0.71119 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11110 |     4217.5 | 1172.2     |   -0.37657 |   -0.88534 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2395 | -0.0013361 | 0.079354   |  -0.017287 |   -0.64775 |
@@ -3729,5 +3745,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18163 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |      3.022 | 0.59816    |   -0.15716 |    -1.9753 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2907 | 1.5660     |   -0.15716 |    -1.9753 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.armv8.1_a
index 01185b9f731a7633f56cec8bf1898d8ada476e5b..0b1b4096ed6162deceab921c0c47b9c9aed27ba9 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.armv8.1_a
@@ -2593,6 +2593,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |      50.09 | 27.515     |    0.30769 |   -0.67311 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     52.708 | 28.887     |    0.29292 |   -0.71628 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        526 |    -1.3308 | 764.98     | -0.0065503 |   -0.31619 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        530 |     28.349 | 776.63     |  -0.028721 |   -0.23025 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2327 |    -10.308 | 744.47     |  -0.013396 |  -0.011191 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2364 |     21.309 | 718.35     |  -0.023145 |   0.067863 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4016 |    -3.2908 | 732.89     |   0.026255 |  -0.062548 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     7.1752 | 728.12     |   0.010529 |  -0.079069 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4048 | 0.00016789 | 0.0012202  |   0.097294 |     11.203 |
@@ -2624,14 +2632,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3618 |    0.98803 | 0.23665    |  -0.033977 |    0.03142 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3618 |   -0.97643 | 1.3689     |    0.36975 |    0.74551 |
  | kickZ                                         | "Z position of magnet kick"                   |       2582 |     5178.9 | 49.776     |    -1.9725 |     5.4244 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11888 | -0.0002389 | 0.088746   |  -0.017409 |    0.10851 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11888 | -0.0013459 | 1.0783     | -0.0061521 |  -0.087691 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12245 |     5.4948 | 3.4410     | -0.0031895 |     -1.212 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4149 |     1.4929 | 1.1252     |    0.01974 |     -1.376 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        526 |    -1.7681 | 764.94     |  -0.002926 |   -0.32113 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        530 |     29.264 | 776.54     |  -0.026743 |   -0.23337 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4243 | 0.00015791 | 0.037685   |   0.073966 |     1.8124 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4243 |  0.0079896 | 1.2437     |   0.033999 |    0.12371 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1056 |     1.0826 | 0.63121    |     1.0405 |     1.2542 |
@@ -2686,8 +2692,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15864 |     1.4995 | 1.1173     | 4.3416e-05 |    -1.3583 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21919 |     17.151 | 4.8192     |   -0.21309 |   -0.81032 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20435 |     17.455 | 4.6622     |   -0.25382 |   -0.74007 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2327 |    -10.204 | 744.48     |  -0.013581 | -0.0077001 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2364 |     21.155 | 718.48     |  -0.021504 |   0.063906 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15560 |  0.0022185 | 0.045912   |  -0.042391 |    0.72809 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15560 |   0.087619 | 1.4374     |  0.0025503 |  -0.095766 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41685 |-0.00028552 | 0.013799   |  0.0079411 |  0.0014369 |
@@ -2749,8 +2753,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90784 |-0.00012998 | 0.085991   | -0.0013379 |    0.12097 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90784 |-0.00067303 | 1.0473     |  0.0024814 |    -0.1196 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      93070 |     5.5058 | 3.4457     |  -0.004195 |    -1.2129 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4016 |    -2.6145 | 734.05     |   0.033346 |  -0.037821 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     6.6638 | 729.20     |   0.004707 |  -0.062058 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       8097 |     1.1057 | 0.64514    |     1.0276 |     1.2523 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       8097 |     1.1057 | 0.64816    |     1.0402 |     1.3835 |
  | Ttrack/eta                                    | "eta"                                         |       8097 |     2.4242 | 0.83435    |    0.51136 |   -0.32553 |
@@ -3152,9 +3154,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42527 |     16.452 | 5.1926     |   -0.14881 |   -0.87491 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11125 |       0.08 | 0.0000     |          0 |          0 |
@@ -3588,6 +3597,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4031 |   0.092624 | 0.10461    |     1.1846 |    0.31706 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4679 |      10252 | 10572.     |     3.1719 |     15.038 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4431 |     554.51 | 473.76     |     2.9176 |     13.734 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1056 |     4466.8 | 998.83     |   -0.65064 |   -0.36567 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4691 |     4387.7 | 1104.1     |   -0.56121 |   -0.69646 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       8097 |     4514.3 | 1093.7     |   -0.65122 |   -0.58381 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2553 |     4419.1 | 1096.1     |   -0.53818 |   -0.70477 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11112 |     4217.5 | 1171.8     |   -0.37688 |   -0.88387 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2397 | -0.0013544 | 0.079340   |  -0.016447 |   -0.64734 |
@@ -3731,5 +3747,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18163 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |      3.022 | 0.59816    |   -0.15708 |    -1.9753 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2907 | 1.5660     |   -0.15708 |    -1.9753 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.detdesc
index 6d9600fc6c19d16bad249d7f886ae5af1c069cb5..e186be29e38fec9ed944e49454e64ab8397d1a30 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.detdesc
@@ -2657,6 +2657,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     52.517 | 28.894     |     0.2702 |   -0.78976 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     55.135 | 30.255     |    0.26428 |   -0.80469 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        435 |    -6.1782 | 829.95     |   0.062782 |   -0.74453 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        435 |     48.247 | 838.79     |  -0.010367 |   -0.63283 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2443 |    -9.2765 | 727.58     |  -0.026404 |    0.12387 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2464 |     23.427 | 701.49     |  -0.017352 |    0.20707 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4015 |    -3.3944 | 732.96     |   0.026633 |  -0.062819 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     7.1752 | 728.12     |   0.010529 |  -0.079069 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4358 | 5.2632e-06 | 0.0011378  |   -0.10621 |     10.777 |
@@ -2688,14 +2696,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3869 |    0.99375 | 0.17400    |   -0.14687 |     2.0385 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3869 |   0.006903 | 1.2046     |  -0.090466 |     1.2501 |
  | kickZ                                         | "Z position of magnet kick"                   |       2755 |     5181.5 | 45.224     |    -2.1785 |     6.4097 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9817 | 3.0559e-05 | 0.088165   |  -0.010126 |   0.056464 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9817 | 0.00031578 | 1.0722     |   0.002116 |   -0.11939 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10075 |     5.4949 | 3.4428     | -0.0042529 |    -1.2125 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3408 |      1.493 | 1.1259     |   0.021233 |    -1.3774 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        435 |    -6.6552 | 829.98     |   0.065105 |   -0.74683 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        435 |     49.345 | 838.77     | -0.0076309 |   -0.63727 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3469 | 0.00024503 | 0.036941   |   0.081048 |     1.5066 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3469 |  0.0081003 | 1.1974     |   0.028709 |     0.4749 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        870 |     1.0724 | 0.61123    |     1.0332 |     1.2365 |
@@ -2750,8 +2756,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17107 |     1.4975 | 1.1177     |    0.00323 |    -1.3592 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22865 |     17.292 | 4.8026     |   -0.23666 |   -0.82194 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21227 |     17.576 | 4.6624     |   -0.28112 |   -0.73326 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2443 |    -9.2038 | 727.58     |  -0.026127 |     0.1273 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2464 |     23.291 | 701.60     |  -0.015915 |    0.20351 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17338 | -5.883e-05 | 0.038939   |-0.00065491 |     2.2629 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17338 | -0.0041467 | 1.1732     |  -0.038613 |    0.32466 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43479 | 1.9182e-05 | 0.013519   |   0.014932 |  -0.016424 |
@@ -2813,8 +2817,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90775 |-0.00013594 | 0.085994   |  -0.001606 |    0.12114 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90775 |-0.00071827 | 1.0474     |  0.0021546 |   -0.11907 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      93060 |     5.5059 | 3.4457     | -0.0042338 |    -1.2129 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4015 |    -2.7161 | 734.12     |   0.033718 |  -0.038109 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     6.6638 | 729.20     |   0.004707 |  -0.062058 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       8096 |     1.1057 | 0.64522    |     1.0279 |     1.2528 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       8096 |     1.1057 | 0.64822    |     1.0402 |      1.383 |
  | Ttrack/eta                                    | "eta"                                         |       8096 |     2.4242 | 0.83440    |    0.51138 |   -0.32581 |
@@ -3222,9 +3224,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 4.4409e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     198.82 | 94.993     |  0.0052558 |     -1.016 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42498 |     16.458 | 5.1862     |    -0.1448 |   -0.88479 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40036 |     16.669 | 5.0773     |   -0.17422 |   -0.82094 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11106 |       0.08 | 0.0000     |          0 |          0 |
@@ -3655,6 +3664,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4445 |   0.048004 | 0.080411   |     2.3309 |     4.9578 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4894 |      11569 | 12521.     |     2.7386 |     9.7799 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4648 |     579.07 | 495.87     |     2.6927 |     11.255 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        870 |     4405.7 | 1000.0     |   -0.52508 |   -0.50877 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4907 |     4436.9 | 1096.2     |   -0.61947 |   -0.63156 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       8096 |     4513.3 | 1094.4     |   -0.64904 |   -0.58827 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2632 |     4383.4 | 1119.2     |   -0.50702 |    -0.7817 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11096 |     4205.4 | 1172.6     |     -0.364 |    -0.8962 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2700 |   -0.22822 | 0.31331    |     2.3649 |    0.95891 |
@@ -3798,5 +3814,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10721 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5834 | 0.45459    |     1.7228 |    0.96819 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4389 | 1.1901     |     1.7228 |    0.96819 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
index 18223521775abecc26f78be4559a8e27250ac8c6..fa27a50b9f0a14ed9e6d218c51ad5e91ff63206e 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-detdesc-opt
@@ -2657,6 +2657,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |     52.618 | 28.996     |    0.26752 |   -0.80699 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     55.202 | 30.353     |    0.26221 |   -0.82344 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        434 |    -2.8802 | 828.23     |   0.061737 |   -0.73842 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        435 |     50.489 | 841.39     | -0.0065985 |   -0.64114 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2445 |    -8.8701 | 729.00     |  -0.026825 |    0.11032 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2468 |     23.997 | 701.40     |  -0.017867 |    0.20689 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4016 |    -3.7204 | 733.16     |   0.026521 |  -0.064172 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     7.1752 | 728.12     |   0.010529 |  -0.079069 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4362 | 5.5122e-06 | 0.0011426  |   -0.11633 |     10.677 |
@@ -2688,14 +2696,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3870 |    0.99322 | 0.17399    |   -0.15458 |     2.0451 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3870 |  0.0089425 | 1.2057     |  -0.079244 |     1.2853 |
  | kickZ                                         | "Z position of magnet kick"                   |       2754 |     5181.5 | 45.291     |    -2.1703 |     6.3553 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9806 | 2.8554e-05 | 0.088104   |  -0.010947 |   0.056538 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9806 | 0.00028554 | 1.0714     |  0.0016646 |   -0.12246 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10064 |      5.496 | 3.4427     | -0.0044438 |    -1.2123 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3404 |     1.4929 | 1.1259     |   0.021257 |    -1.3774 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        434 |     -3.318 | 828.24     |   0.064021 |   -0.74064 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        435 |     51.621 | 841.39     | -0.0039387 |    -0.6457 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3465 | 0.00025108 | 0.036889   |   0.080947 |     1.5159 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3465 |  0.0081097 | 1.1972     |   0.027792 |    0.47852 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        869 |     1.0715 | 0.61033    |     1.0396 |     1.2643 |
@@ -2750,8 +2756,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17122 |     1.4974 | 1.1177     |  0.0033004 |    -1.3593 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22905 |     17.288 | 4.8057     |   -0.23932 |   -0.81173 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21242 |     17.566 | 4.6649     |   -0.28169 |   -0.72812 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2445 |    -8.7914 | 729.01     |  -0.026372 |    0.11366 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2468 |     23.861 | 701.52     |  -0.016416 |    0.20333 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17351 |-6.2821e-05 | 0.038996   |  0.0039572 |      2.298 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17351 | -0.0042996 | 1.1743     |  -0.037181 |     0.3399 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43528 |  1.746e-05 | 0.013514   |   0.014253 |  -0.045367 |
@@ -2813,8 +2817,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90785 |-0.00013416 | 0.085993   | -0.0013537 |    0.12115 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90785 |-0.00071819 | 1.0474     |  0.0022738 |   -0.11896 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      93072 |     5.5058 | 3.4457     |  -0.004199 |    -1.2129 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4016 |    -3.0403 | 734.31     |   0.033619 |  -0.039487 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     6.6638 | 729.20     |   0.004707 |  -0.062058 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       8097 |     1.1058 | 0.64528    |      1.028 |     1.2519 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       8097 |     1.1057 | 0.64830    |     1.0405 |     1.3827 |
  | Ttrack/eta                                    | "eta"                                         |       8097 |      2.424 | 0.83448    |    0.51127 |   -0.32596 |
@@ -3222,9 +3224,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    | 1.2701e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 5.5089e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.16 | 95.185     |   0.021728 |    -1.0319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42648 |     16.455 | 5.1883     |   -0.14839 |   -0.87254 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40152 |     16.661 | 5.0786     |   -0.17312 |    -0.8211 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11142 |       0.08 | 0.0000     |          0 |          0 |
@@ -3655,6 +3664,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4444 |   0.048099 | 0.080557   |     2.3229 |      4.901 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4900 |      11541 | 12508.     |     2.7454 |     9.8287 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4658 |     578.25 | 495.38     |     2.6962 |      11.29 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        869 |     4402.5 | 1002.8     |    -0.5203 |   -0.52655 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4913 |     4439.4 | 1091.6     |   -0.62126 |    -0.6145 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       8097 |     4513.3 | 1094.2     |   -0.64875 |   -0.58732 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2635 |     4382.8 | 1115.8     |   -0.50991 |   -0.77062 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11106 |     4215.2 | 1175.9     |   -0.37587 |   -0.90063 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2698 |   -0.37066 | 0.27911    |     5.8569 |      15.64 |
@@ -3798,5 +3814,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |     0.1072 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5834 | 0.45459    |     1.7229 |    0.96835 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4389 | 1.1901     |     1.7229 |    0.96835 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-opt
index 0591bb8bc08728543c2708fe3b3e73b4e960a327..34ea175c302d9a67d7995043cfaa040074a3f2c6 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_light_reco_with_mcchecking.ref.x86_64_v3-opt
@@ -2593,6 +2593,14 @@ RichTkSelEffLong                       INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffLong/nRichTracks            | "# Rich Tracks / Event"                       |         89 |      50.09 | 27.563     |    0.30333 |   -0.69128 |
  | /RICH/RichTkSelEffLong/nTracks                | "# Tracks / Event"                            |         89 |     52.685 | 28.929     |    0.28963 |   -0.73227 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        527 |    -2.2533 | 764.55     | -0.0034171 |   -0.31492 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        531 |     26.342 | 777.27     |  -0.025704 |   -0.23825 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2324 |    -10.768 | 745.26     |  -0.013213 |  -0.016542 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2365 |     22.162 | 718.40     |  -0.022356 |   0.070716 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4016 |    -3.7204 | 733.16     |   0.026521 |  -0.064172 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     7.1752 | 728.12     |   0.010529 |  -0.079069 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4047 | 0.00016904 | 0.0012203  |    0.09741 |     11.203 |
@@ -2624,14 +2632,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3617 |    0.98798 | 0.23650    |  -0.033002 |   0.023404 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3617 |   -0.97417 | 1.3675     |    0.37996 |    0.74792 |
  | kickZ                                         | "Z position of magnet kick"                   |       2578 |       5179 | 49.464     |    -1.9503 |     5.2979 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11911 |-0.00023676 | 0.088749   |  -0.018351 |    0.10765 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11911 | -0.0013181 | 1.0785     | -0.0073328 |  -0.087244 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12268 |     5.4953 | 3.4408     | -0.0032426 |    -1.2119 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4157 |     1.4929 | 1.1252     |   0.019702 |     -1.376 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        527 |    -2.6471 | 764.48     | 0.00010146 |   -0.31952 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        531 |      27.26 | 777.17     |  -0.023727 |   -0.24132 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4251 | 0.00015761 | 0.037655   |   0.074132 |     1.8191 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4251 |  0.0079746 | 1.2428     |   0.034139 |    0.12706 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1058 |     1.0836 | 0.63102    |     1.0359 |     1.2459 |
@@ -2686,8 +2692,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15861 |     1.4994 | 1.1173     | 0.00028034 |    -1.3583 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21930 |     17.146 | 4.8222     |   -0.21209 |   -0.81234 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20421 |      17.45 | 4.6622     |   -0.25245 |    -0.7409 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2324 |    -10.688 | 745.26     |  -0.013335 |  -0.013062 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2365 |     22.002 | 718.53     |  -0.020723 |   0.066806 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15559 |  0.0022244 | 0.045970   |  -0.044641 |    0.72756 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15559 |   0.087775 | 1.4382     |  0.0022317 |  -0.096982 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41681 |-0.00028641 | 0.013803   |  0.0067084 | -0.0098141 |
@@ -2749,8 +2753,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      90785 |-0.00013416 | 0.085993   | -0.0013537 |    0.12115 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      90785 |-0.00071819 | 1.0474     |  0.0022738 |   -0.11896 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      93072 |     5.5058 | 3.4457     |  -0.004199 |    -1.2129 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       4016 |    -3.0403 | 734.31     |   0.033619 |  -0.039487 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       4081 |     6.6638 | 729.20     |   0.004707 |  -0.062058 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       8097 |     1.1058 | 0.64528    |      1.028 |     1.2519 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       8097 |     1.1057 | 0.64830    |     1.0405 |     1.3827 |
  | Ttrack/eta                                    | "eta"                                         |       8097 |      2.424 | 0.83448    |    0.51127 |   -0.32596 |
@@ -3152,9 +3154,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.83 | 96.058     |   0.037622 |   -0.97538 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42659 |     16.451 | 5.1919     |   -0.15015 |   -0.86741 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40165 |     16.655 | 5.0835     |    -0.1759 |   -0.81445 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11152 |       0.08 | 0.0000     |          0 |          0 |
@@ -3588,6 +3597,13 @@ RichTkSelEffLong                       INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffLong/All/effVGhostProb      | "RICH Track Sel. Eff. V Ghost Probability"    |       4029 |   0.092638 | 0.10476    |     1.1863 |    0.31923 |
  | /RICH/RichTkSelEffLong/All/effVP              | "RICH Track Sel. Eff. V P"                    |       4677 |      10243 | 10568.     |     3.1755 |     15.072 |
  | /RICH/RichTkSelEffLong/All/effVPt             | "RICH Track Sel. Eff. V Pt"                   |       4432 |     554.41 | 473.76     |     2.9166 |     13.729 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1058 |     4464.8 | 999.93     |   -0.64795 |   -0.37482 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4689 |     4386.2 | 1104.3     |   -0.55706 |   -0.70076 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       8097 |     4513.3 | 1094.2     |   -0.64875 |   -0.58732 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2558 |     4417.4 | 1095.0     |   -0.53368 |   -0.70692 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |      11115 |     4228.8 | 1175.9     |   -0.39155 |   -0.88804 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2394 |-0.00096014 | 0.079267   | -0.0078315 |   -0.64446 |
@@ -3731,5 +3747,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18163 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |      3.022 | 0.59816    |   -0.15708 |    -1.9753 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2907 | 1.5660     |   -0.15708 |    -1.9753 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref
index 58ba8925aaa9a54e765363a543bfcf3fef620622..e1892ebdf936d9f2ff77f99812741dc31e5e4fe9 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref
+++ b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref
@@ -2670,6 +2670,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     24.899 | 14.633     |    0.50004 |   -0.40582 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     28.506 | 16.964     |    0.51586 |   -0.35791 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |     12.066 | 748.05     |   0.010971 |   -0.25939 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |      36.61 | 764.13     |  -0.032612 |   -0.18451 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2330 |    -11.352 | 746.05     |   -0.01695 |  -0.015254 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.657 | 717.53     |  -0.022024 |   0.072829 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1403 |     7.7568 | 732.11     |   0.070791 |   -0.24832 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -16.882 | 743.55     |   0.060255 |   -0.30808 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4063 | 0.00015722 | 0.0011852  |   0.040479 |     10.835 |
@@ -2701,14 +2709,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3741 |    0.98905 | 0.23858    |  -0.048077 |   0.098134 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3741 |   -0.97628 | 1.3686     |    0.37155 |    0.77487 |
  | kickZ                                         | "Z position of magnet kick"                   |       2660 |     5178.7 | 50.367     |    -2.0169 |     5.5917 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11854 |-0.00013498 | 0.088535   |  -0.024468 |    0.10962 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11854 | -0.0014679 | 1.0770     |   -0.01438 |  -0.080553 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12214 |     5.4939 | 3.4417     | -0.0028835 |    -1.2127 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4136 |     1.4923 | 1.1256     |   0.020792 |    -1.3767 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |      11.59 | 748.14     |    0.01326 |    -0.2633 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |     37.528 | 764.45     |  -0.030619 |   -0.18834 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4231 | 0.00013472 | 0.037484   |   0.078009 |     1.7687 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4231 |  0.0069251 | 1.2352     |   0.037197 |    0.11259 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1053 |     1.0759 | 0.62733    |     1.0718 |     1.4436 |
@@ -2763,8 +2769,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15966 |     1.4989 | 1.1179     | 0.00091844 |    -1.3597 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21958 |     17.149 | 4.8196     |   -0.21327 |   -0.80988 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20447 |     17.453 | 4.6606     |   -0.25175 |   -0.74173 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2330 |    -11.266 | 746.05     |  -0.016881 |  -0.012018 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.527 | 717.68     |  -0.020477 |   0.068709 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15652 |  0.0022297 | 0.045777   |   -0.06294 |    0.50485 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15652 |   0.088694 | 1.4321     |  0.0058539 |  -0.095625 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41741 |-0.00028581 | 0.013772   |  0.0031508 |  -0.013642 |
@@ -2826,8 +2830,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31152 |-0.00012712 | 0.088923   |  -0.010185 |   0.051364 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31152 | 6.4201e-06 | 1.0825     |  -0.002573 |   -0.15915 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      32088 |     5.5186 | 3.4442     | -0.0098362 |    -1.2114 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1403 |     9.7398 | 735.69     |   0.090127 |   -0.17846 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -18.245 | 746.30     |   0.044203 |   -0.25747 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2836 |     1.1897 | 0.70504    |    0.94806 |    0.83458 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2836 |     1.1907 | 0.70892    |    0.97406 |     1.0368 |
  | Ttrack/eta                                    | "eta"                                         |       2836 |     2.2821 | 0.82163    |    0.58713 |    -0.3272 |
@@ -3546,9 +3548,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5527e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42522 |     16.452 | 5.1928     |   -0.14905 |   -0.87484 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11123 |       0.08 | 0.0000     |          0 |          0 |
@@ -4074,6 +4083,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       1995 |    0.12873 | 0.10111    |     1.1975 |    0.38521 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2187 |     4522.1 | 7059.4     |     6.0191 |     49.446 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2045 |     410.69 | 441.83     |     6.2703 |     62.085 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1053 |     4454.3 | 1005.8     |   -0.61941 |   -0.42124 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4697 |     4389.6 | 1105.2     |   -0.56299 |    -0.6965 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2836 |     4598.1 | 1084.6     |   -0.69271 |   -0.61885 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2537 |     4413.4 | 1098.4     |    -0.5284 |   -0.72009 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4223 |     4145.9 | 1200.4     |   -0.32087 |    -0.9436 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2409 | -0.0010565 | 0.078529   |  0.0016888 |   -0.66136 |
@@ -4217,5 +4233,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |    -0.1569 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |    -0.1569 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.armv8.1_a b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.armv8.1_a
index 3c92b2071278a97cd99172609e1f99d448ddaaca..79cfc1f74cf299f87ae865df6ebf06a0b709fe97 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.armv8.1_a
+++ b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.armv8.1_a
@@ -2672,6 +2672,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |      24.91 | 14.648     |    0.49977 |   -0.41193 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     28.528 | 16.973     |    0.51416 |    -0.3631 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        518 |     12.693 | 748.64     |  0.0086127 |   -0.26279 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |      36.61 | 764.13     |  -0.032612 |   -0.18451 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2334 |    -10.454 | 745.87     |  -0.018061 |  -0.015039 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.657 | 717.53     |  -0.022024 |   0.072829 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     6.7801 | 731.76     |   0.072339 |   -0.24601 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -16.882 | 743.55     |   0.060255 |   -0.30808 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4066 | 0.00016054 | 0.0011857  |   0.061687 |     10.812 |
@@ -2703,14 +2711,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3743 |    0.98915 | 0.23862    |  -0.048485 |    0.09699 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3743 |   -0.97629 | 1.3688     |    0.37153 |     0.7724 |
  | kickZ                                         | "Z position of magnet kick"                   |       2663 |     5178.7 | 50.388     |     -2.016 |     5.5771 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11843 |-0.00014017 | 0.088524   |  -0.025057 |    0.10963 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11843 | -0.0014439 | 1.0769     |  -0.014377 |   -0.08176 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12203 |     5.4939 | 3.4415     | -0.0029485 |    -1.2125 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4132 |     1.4923 | 1.1256     |   0.020812 |    -1.3767 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        518 |      12.22 | 748.72     |   0.010888 |   -0.26667 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        534 |     37.528 | 764.45     |  -0.030619 |   -0.18834 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4227 | 0.00013485 | 0.037500   |   0.077971 |     1.7648 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4227 |  0.0069316 | 1.2359     |   0.037526 |    0.11162 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1052 |     1.0735 | 0.62679    |     1.0742 |     1.4625 |
@@ -2765,8 +2771,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15975 |      1.499 | 1.1180     | 0.00083976 |    -1.3599 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21954 |     17.151 | 4.8186     |   -0.21331 |   -0.80946 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20484 |      17.45 | 4.6626     |   -0.25206 |   -0.74188 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2334 |    -10.347 | 745.88     |  -0.017954 |  -0.011901 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2367 |     21.527 | 717.68     |  -0.020477 |   0.068709 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15660 |  0.0022235 | 0.045810   |  -0.060278 |    0.52733 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15660 |   0.088611 | 1.4323     |   0.005665 |  -0.094233 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41771 |-0.00028398 | 0.013779   |  0.0062466 | -0.0064729 |
@@ -2828,8 +2832,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31161 |-0.00012259 | 0.088938   |  -0.010036 |   0.050509 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31161 |  0.0001059 | 1.0827     | -0.0021636 |   -0.16006 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      32098 |     5.5179 | 3.4443     | -0.0095977 |    -1.2115 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     8.7393 | 735.34     |   0.091686 |   -0.17587 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1433 |    -18.245 | 746.30     |   0.044203 |   -0.25747 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2837 |     1.1901 | 0.70507    |    0.94631 |    0.83087 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2837 |     1.1912 | 0.70891    |    0.97223 |     1.0333 |
  | Ttrack/eta                                    | "eta"                                         |       2837 |     2.2822 | 0.82145    |    0.58712 |   -0.32659 |
@@ -3548,9 +3550,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.61 | 96.081     |   0.030167 |   -0.99159 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42527 |     16.452 | 5.1926     |   -0.14881 |   -0.87491 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40072 |     16.659 | 5.0843     |   -0.17646 |   -0.81491 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11125 |       0.08 | 0.0000     |          0 |          0 |
@@ -4076,6 +4085,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       1995 |    0.12867 | 0.10110    |     1.1983 |    0.38685 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2189 |     4521.8 | 7057.5     |     6.0208 |     49.475 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2047 |     410.47 | 441.75     |      6.272 |     62.114 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1052 |     4454.7 | 1006.3     |   -0.61989 |   -0.42352 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4701 |     4388.5 | 1105.2     |   -0.56144 |   -0.69904 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2837 |     4600.2 | 1083.2     |   -0.69725 |   -0.60945 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2539 |     4414.8 | 1097.4     |   -0.53212 |   -0.71369 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4224 |     4146.3 | 1199.8     |     -0.322 |    -0.9412 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2411 | -0.0010847 | 0.078523   |  0.0025578 |   -0.66073 |
@@ -4219,5 +4235,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |   -0.15682 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |   -0.15682 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.detdesc b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.detdesc
index cead03770bf7da1fbd37b327a659f9ed1ab3e9d4..4675f98f0e8293eefecab078eedf99c3f5ae40b3 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.detdesc
+++ b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.detdesc
@@ -2726,6 +2726,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.213 | 14.735     |    0.54779 |   -0.37746 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     29.337 | 16.378     |    0.43901 |   -0.51215 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        428 |     1.1682 | 822.63     |      0.049 |   -0.71841 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |      58.61 | 818.76     |  -0.024862 |   -0.59366 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2452 |    -9.2781 | 727.93     |  -0.028076 |    0.12381 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2473 |      24.51 | 700.50     |  -0.016822 |    0.21343 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1393 |     6.3757 | 736.58     |   0.066607 |   -0.27134 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |    -23.524 | 751.42     |   0.058383 |   -0.34322 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4378 |-2.2873e-07 | 0.0011204  |   -0.22189 |     11.452 |
@@ -2757,14 +2765,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4005 |    0.99464 | 0.17464    |   -0.14721 |     2.0759 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4005 |  0.0097984 | 1.1997     |  -0.036156 |     1.3441 |
  | kickZ                                         | "Z position of magnet kick"                   |       2846 |     5181.6 | 45.205     |    -2.1708 |     6.3569 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9750 | 0.00011897 | 0.088158   |  -0.016309 |   0.066895 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9750 | 0.00026667 | 1.0725     | -0.0050214 |   -0.11536 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10012 |     5.4913 | 3.4431     | -0.0029943 |    -1.2131 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3387 |     1.4916 | 1.1266     |   0.023415 |    -1.3789 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        428 |    0.77103 | 822.66     |   0.051215 |   -0.72083 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |      59.76 | 818.85     |   -0.02147 |   -0.59831 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3448 | 0.00030162 | 0.036803   |   0.080886 |     1.4113 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3448 |  0.0082947 | 1.1892     |    0.02455 |    0.48455 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        865 |     1.0665 | 0.61175    |     1.0517 |     1.2826 |
@@ -2819,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17225 |     1.4982 | 1.1174     |  0.0025642 |    -1.3586 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22951 |      17.29 | 4.8050     |   -0.23795 |   -0.82014 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21302 |     17.569 | 4.6649     |    -0.2799 |    -0.7349 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2452 |    -9.1884 | 727.93     |  -0.027778 |    0.12716 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2473 |     24.353 | 700.62     |  -0.015194 |     0.2104 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17497 |-2.8005e-05 | 0.038857   | -0.0031929 |     2.2705 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17497 | -0.0036621 | 1.1699     |  -0.038592 |     0.3046 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43655 | 2.0295e-05 | 0.013497   |   0.013839 |  -0.011414 |
@@ -2882,8 +2886,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31031 |-8.5721e-05 | 0.088839   |  -0.014847 |   0.050321 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31031 | 0.00044149 | 1.0817     | -0.0068986 |   -0.15839 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      31969 |     5.5161 | 3.4440     | -0.0090757 |    -1.2115 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1393 |     8.3238 | 740.10     |   0.085818 |   -0.20243 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |     -24.93 | 754.21     |   0.042789 |   -0.29506 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2825 |     1.1886 | 0.70631    |     0.9553 |    0.84908 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2825 |     1.1898 | 0.71026    |    0.97928 |     1.0478 |
  | Ttrack/eta                                    | "eta"                                         |       2825 |     2.2729 | 0.81781    |    0.60447 |   -0.27546 |
@@ -3655,9 +3657,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    |          0 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 4.4409e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     198.82 | 94.993     |  0.0052558 |     -1.016 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42498 |     16.458 | 5.1862     |    -0.1448 |   -0.88479 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40036 |     16.669 | 5.0773     |   -0.17422 |   -0.82094 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11106 |       0.08 | 0.0000     |          0 |          0 |
@@ -4178,6 +4187,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2238 |    0.11314 | 0.095246   |     1.4938 |     1.3518 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2268 |     4595.5 | 6360.0     |     4.2938 |     25.432 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2150 |     414.76 | 422.52     |     6.1796 |     71.146 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        865 |     4396.6 | 1008.1     |   -0.50499 |   -0.55684 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4925 |     4435.3 | 1096.1     |   -0.61077 |   -0.64363 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2825 |     4598.3 | 1085.1     |   -0.69651 |   -0.62248 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2611 |     4379.8 | 1119.9     |   -0.50238 |   -0.78725 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3912 |     4128.8 | 1199.2     |   -0.30452 |   -0.95316 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2716 |    -20.686 | 0.0000     |          0 |          0 |
@@ -4321,5 +4337,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10789 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5846 | 0.45565    |     1.7134 |    0.93575 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4357 | 1.1929     |     1.7134 |    0.93575 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-detdesc-opt b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-detdesc-opt
index 978676da0ec5c59477ebfbebb1e0e321654fa744..e055c9c2a3dce81ffc08c6f0daec919da5075299 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-detdesc-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-detdesc-opt
@@ -2726,6 +2726,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     25.225 | 14.780     |    0.55075 |   -0.35351 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |      29.36 | 16.409     |    0.43749 |   -0.49733 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        427 |     4.5375 | 820.82     |   0.048128 |   -0.71184 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |     60.841 | 821.38     |  -0.020536 |   -0.60191 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2454 |    -8.8733 | 729.34     |  -0.028486 |    0.11031 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2477 |     25.076 | 700.41     |  -0.017331 |    0.21324 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1394 |     4.6034 | 736.71     |   0.067919 |   -0.26942 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |    -24.624 | 750.76     |   0.059752 |   -0.33866 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4383 | 5.0274e-07 | 0.0011237  |   -0.21662 |      11.34 |
@@ -2757,14 +2765,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       4008 |    0.99407 | 0.17457    |   -0.15475 |     2.0836 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       4008 |   0.012075 | 1.2005     |  -0.023212 |     1.3762 |
  | kickZ                                         | "Z position of magnet kick"                   |       2844 |     5181.6 | 45.227     |    -2.1674 |     6.3378 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |       9739 | 8.8305e-05 | 0.088095   |  -0.016451 |   0.067015 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |       9739 | 0.00019509 | 1.0718     | -0.0048621 |   -0.11707 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      10001 |     5.4925 | 3.4429     | -0.0031852 |    -1.2129 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       3383 |     1.4916 | 1.1266     |   0.023442 |    -1.3789 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        427 |     4.1803 | 820.83     |   0.050306 |   -0.71417 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        437 |     62.025 | 821.50     |  -0.017232 |    -0.6067 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       3444 | 0.00030197 | 0.036750   |    0.08098 |       1.42 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       3444 |  0.0083043 | 1.1890     |   0.023406 |    0.48877 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |        864 |     1.0656 | 0.61084    |     1.0582 |      1.311 |
@@ -2819,8 +2825,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      17244 |     1.4982 | 1.1175     |   0.002634 |    -1.3587 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      22991 |     17.285 | 4.8081     |   -0.24059 |   -0.81002 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      21317 |     17.559 | 4.6674     |   -0.28047 |    -0.7298 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2454 |    -8.7775 | 729.36     |  -0.028011 |    0.11358 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2477 |     24.919 | 700.53     |  -0.015688 |    0.21021 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      17514 | -4.111e-05 | 0.038914   |  0.0010764 |      2.305 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      17514 | -0.0039391 | 1.1711     |  -0.036202 |    0.31954 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      43707 | 1.9997e-05 | 0.013495   |    0.01396 |   -0.04084 |
@@ -2882,8 +2886,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31042 |-8.2469e-05 | 0.088821   |  -0.013371 |   0.050563 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31042 | 0.00050254 | 1.0815     | -0.0055708 |   -0.15821 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      31982 |     5.5156 | 3.4440     | -0.0089197 |    -1.2115 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1394 |     6.5423 | 740.20     |   0.087173 |   -0.20041 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1432 |    -26.041 | 753.56     |    0.04414 |   -0.29046 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2826 |     1.1882 | 0.70625    |    0.95697 |    0.85388 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2826 |     1.1895 | 0.71021    |    0.98062 |     1.0521 |
  | Ttrack/eta                                    | "eta"                                         |       2826 |     2.2738 | 0.81809    |    0.60326 |   -0.27803 |
@@ -3655,9 +3657,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        1.2 | 0.70000    | 1.2701e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        3.1 | 0.20000    | 5.5089e-13 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         66 | 20.000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.16 | 95.185     |   0.021728 |    -1.0319 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42648 |     16.455 | 5.1883     |   -0.14839 |   -0.87254 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40152 |     16.661 | 5.0786     |   -0.17312 |    -0.8211 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11142 |       0.08 | 0.0000     |          0 |          0 |
@@ -4178,6 +4187,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       2235 |    0.11288 | 0.095001   |     1.4948 |     1.3574 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2269 |     4590.3 | 6360.6     |     4.2948 |     25.434 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2153 |        414 | 422.33     |     6.1859 |     71.245 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |        864 |     4393.4 | 1010.9     |   -0.50011 |   -0.57421 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4931 |     4439.5 | 1091.7     |   -0.61663 |   -0.62226 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2826 |     4598.6 | 1084.7     |   -0.69649 |   -0.62046 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2613 |     4379.4 | 1116.7     |   -0.50596 |   -0.77645 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       3915 |     4141.9 | 1208.9     |    -0.3169 |    -0.9734 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2715 |     1.1732 | 0.0000     |          0 |          0 |
@@ -4321,5 +4337,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         34 |    0.10789 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     2.5846 | 0.45565    |     1.7134 |     0.9359 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -2.4357 | 1.1929     |     1.7134 |     0.9359 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
diff --git a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-opt b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-opt
index d8fb39e4b6015d79b8245da3b8249d4b2e2756bd..74c639b6abbd1e9f6963d7855682066e5b692552 100644
--- a/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-opt
+++ b/Hlt/RecoConf/tests/refs/hlt2_reco_baseline_with_mcchecking_mpp_with_bfield.ref.x86_64_v3-opt
@@ -2672,6 +2672,14 @@ RichTkSelEffUpstream                   INFO 1D histograms in directory "RichTkSe
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | /RICH/RichTkSelEffUpstream/nRichTracks        | "# Rich Tracks / Event"                       |         89 |     24.955 | 14.685     |    0.51579 |   -0.35798 |
  | /RICH/RichTkSelEffUpstream/nTracks            | "# Tracks / Event"                            |         89 |     28.584 | 16.998     |     0.5202 |   -0.33234 |
+TrackCorrelationsMonitor               INFO 1D histograms in directory "TrackCorrelationsMonitor" : 6
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |     11.729 | 748.24     |   0.011898 |   -0.26178 |
+ | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        535 |     34.603 | 764.83     |  -0.029765 |   -0.19304 |
+ | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2331 |    -10.913 | 746.65     |  -0.017863 |  -0.020381 |
+ | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2368 |     22.508 | 717.58     |  -0.021227 |   0.075683 |
+ | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     5.9961 | 732.24     |   0.072021 |   -0.24636 |
+ | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1434 |    -17.123 | 743.35     |   0.061165 |    -0.3069 |
 TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFitMatchMonitor" : 29
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx for dx==0                            | "T-UT dtx for dx==0"                          |       4065 | 0.00016213 | 0.0011837  |    0.07788 |     10.801 |
@@ -2703,14 +2711,12 @@ TrackFitMatchMonitor                   INFO 1D histograms in directory "TrackFit
  | curvatureRatioVeloUTToLong                    | "curvature ratio Velo-UT to Long"             |       3742 |    0.98907 | 0.23851    |  -0.050068 |   0.097433 |
  | curvatureRatioVeloUTToLongPull                | "curvature ratio Velo-UT to Long pull"        |       3742 |   -0.97564 | 1.3673     |    0.37399 |    0.77655 |
  | kickZ                                         | "Z position of magnet kick"                   |       2658 |     5178.8 | 50.089     |    -1.9982 |     5.4775 |
-TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 332
+TrackMonitor                           INFO 1D histograms in directory "TrackMonitor" : 326
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | Downstream/FTResidual                         | "FTresidual (rms-unbiased)"                   |      11866 |-0.00013821 | 0.088528   |  -0.025994 |    0.10876 |
  | Downstream/FTresidualPull                     | "FT residual pull"                            |      11866 | -0.0013821 | 1.0770     |  -0.015601 |  -0.081336 |
  | Downstream/HitFTLayers                        | "Hit FT layers"                               |      12226 |     5.4944 | 3.4413     | -0.0030023 |    -1.2125 |
  | Downstream/HitUTLayers                        | "Hit UT layers"                               |       4140 |     1.4923 | 1.1255     |   0.020772 |    -1.3767 |
- | Downstream/TrackStateAtTDownX                 | "x position for tracks at the Beginning o..." |        519 |     11.301 | 748.29     |   0.014073 |    -0.2653 |
- | Downstream/TrackStateAtTUpX                   | "x position for tracks at the Beginning o..." |        535 |     35.523 | 765.14     |  -0.027767 |   -0.19681 |
  | Downstream/UTResidual                         | "UTresidual (rms-unbiased)"                   |       4235 | 0.00012987 | 0.037467   |   0.078417 |     1.7726 |
  | Downstream/UTresidualPull                     | "UT residual pull"                            |       4235 |  0.0069658 | 1.2350     |   0.037581 |    0.11515 |
  | Downstream/chi2PerDofDownstream               | "chi/dof for T(Muon) segment"                 |       1054 |     1.0745 | 0.62661    |     1.0694 |     1.4531 |
@@ -2765,8 +2771,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Long/HitUTLayers                              | "Hit UT layers"                               |      15972 |     1.4989 | 1.1180     |  0.0010751 |    -1.3599 |
  | Long/HitVeloALayers                           | "Hit Velo-A layers"                           |      21965 |     17.145 | 4.8216     |   -0.21231 |   -0.81148 |
  | Long/HitVeloCLayers                           | "Hit Velo-C layers"                           |      20470 |     17.445 | 4.6625     |   -0.25068 |   -0.74269 |
- | Long/TrackStateAtTDownX                       | "x position for tracks at the Beginning o..." |       2331 |     -10.83 | 746.65     |  -0.017694 |  -0.017252 |
- | Long/TrackStateAtTUpX                         | "x position for tracks at the Beginning o..." |       2368 |     22.373 | 717.72     |  -0.019687 |   0.071611 |
  | Long/UTResidual                               | "UTresidual (rms-unbiased)"                   |      15659 |  0.0022256 | 0.045832   |  -0.062257 |    0.52722 |
  | Long/UTresidualPull                           | "UT residual pull"                            |      15659 |   0.088624 | 1.4324     |  0.0046284 |  -0.094285 |
  | Long/VPXResidual                              | "VPXresidual (rms-unbiased)"                  |      41769 |-0.00028476 | 0.013781   |   0.005741 |  -0.016655 |
@@ -2828,8 +2832,6 @@ TrackMonitor                           INFO 1D histograms in directory "TrackMon
  | Ttrack/FTResidual                             | "FTresidual (rms-unbiased)"                   |      31174 | -0.0001296 | 0.088931   | -0.0098969 |   0.051469 |
  | Ttrack/FTresidualPull                         | "FT residual pull"                            |      31174 |-5.1325e-05 | 1.0826     | -0.0026714 |   -0.15789 |
  | Ttrack/HitFTLayers                            | "Hit FT layers"                               |      32113 |     5.5181 | 3.4442     | -0.0096672 |    -1.2114 |
- | Ttrack/TrackStateAtTDownX                     | "x position for tracks at the Beginning o..." |       1404 |     7.9701 | 735.80     |   0.091403 |    -0.1764 |
- | Ttrack/TrackStateAtTUpX                       | "x position for tracks at the Beginning o..." |       1434 |    -18.494 | 746.10     |   0.045132 |   -0.25634 |
  | Ttrack/chi2PerDofDownstream                   | "chi/dof for T(Muon) segment"                 |       2838 |       1.19 | 0.70542    |    0.94714 |    0.82859 |
  | Ttrack/chi2_per_ndof                          | "chi2/ndof"                                   |       2838 |     1.1911 | 0.70929    |    0.97277 |     1.0299 |
  | Ttrack/eta                                    | "eta"                                         |       2838 |     2.2827 | 0.82188    |    0.58646 |   -0.32928 |
@@ -3548,9 +3550,16 @@ TrackVertexMonitor                     INFO 1D histograms in directory "TrackVer
  | twoprong doca pull                            | "twoprong doca pull"                          |          2 |        0.4 | 0.10000    |-4.2188e-15 |         -2 |
  | twoprong mass (GeV)                           | "twoprong mass (GeV)"                         |          2 |        2.8 | 0.10000    | 3.5874e-12 |         -2 |
  | twoprong momentum (GeV)                       | "twoprong momentum (GeV)"                     |          2 |         42 | 4.0000     |          0 |         -2 |
-VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 68
+VeloTrackMonitor                       INFO 1D histograms in directory "VeloTrackMonitor" : 75
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/multiplicity                       | "Downstream multiplicity"                     |         89 |          0 | 0.0000     |          0 |          0 |
+ | Long/multiplicity                             | "Long multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | LongMuon/multiplicity                         | "LongMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
+ | Muon/multiplicity                             | "Muon multiplicity"                           |         89 |          0 | 0.0000     |          0 |          0 |
+ | SeedMuon/multiplicity                         | "SeedMuon multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | TrackMultiplicityFine                         | "# tracks"                                    |         89 |     199.83 | 96.058     |   0.037622 |   -0.97538 |
+ | Ttrack/multiplicity                           | "Ttrack multiplicity"                         |         89 |          0 | 0.0000     |          0 |          0 |
+ | Upstream/multiplicity                         | "Upstream multiplicity"                       |         89 |          0 | 0.0000     |          0 |          0 |
  | Velo/HitVeloALayers                           | "Hit Velo-A layers"                           |      42659 |     16.451 | 5.1919     |   -0.15015 |   -0.86741 |
  | Velo/HitVeloCLayers                           | "Hit Velo-C layers"                           |      40165 |     16.655 | 5.0835     |    -0.1759 |   -0.81445 |
  | Velo/chi2_per_ndof                            | "chi2/ndof"                                   |      11152 |       0.08 | 0.0000     |          0 |          0 |
@@ -4076,6 +4085,13 @@ RichTkSelEffUpstream                   INFO 1D profile histograms in directory "
  | /RICH/RichTkSelEffUpstream/All/effVGhostProb  | "RICH Track Sel. Eff. V Ghost Probability"    |       1995 |    0.12902 | 0.10155    |     1.1937 |    0.36386 |
  | /RICH/RichTkSelEffUpstream/All/effVP          | "RICH Track Sel. Eff. V P"                    |       2193 |     4516.7 | 7052.8     |     6.0253 |     49.548 |
  | /RICH/RichTkSelEffUpstream/All/effVPt         | "RICH Track Sel. Eff. V Pt"                   |       2050 |     409.57 | 441.19     |     6.2887 |     62.381 |
+TrackCorrelationsMonitor               INFO 1D profile histograms in directory "TrackCorrelationsMonitor" : 5
+ | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
+ | Downstream/GhostProbVsFTOccup                 | "ghostProb versus FT occupancy"               |       1054 |     4452.7 | 1007.4     |   -0.61719 |   -0.43237 |
+ | Long/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4699 |     4387.3 | 1105.7     |   -0.55797 |   -0.70246 |
+ | Ttrack/GhostProbVsFTOccup                     | "ghostProb versus FT occupancy"               |       2838 |     4598.5 | 1084.2     |     -0.693 |    -0.6164 |
+ | Upstream/GhostProbVsFTOccup                   | "ghostProb versus FT occupancy"               |       2544 |     4413.4 | 1096.4     |   -0.52783 |   -0.71567 |
+ | Velo/GhostProbVsFTOccup                       | "ghostProb versus FT occupancy"               |       4223 |     4163.3 | 1207.9     |   -0.34375 |   -0.95444 |
 TrackFitMatchMonitor                   INFO 1D profile histograms in directory "TrackFitMatchMonitor" : 73
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |
  | T-UT/dtx pull vs qop                          | "T-UT dtx pull vs qop"                        |       2408 |-0.00070496 | 0.078465   |   0.013154 |   -0.65918 |
@@ -4219,5 +4235,5 @@ TrackVertexMonitor                     INFO 1D profile histograms in directory "
  | track IP Y vs pt profile                      | "track IP Y vs pt (GeV) (biased)"             |         33 |    0.18177 | 0.0000     |          0 |          0 |
  | twoprong doca vs eta                          | "twoprong doca vs eta"                        |          2 |     3.0219 | 0.59816    |   -0.15682 |    -1.9754 |
  | twoprong doca vs phi                          | "twoprong doca vs phi"                        |          2 |    -1.2909 | 1.5660     |   -0.15682 |    -1.9754 |
-VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 18
+VeloTrackMonitor                       INFO 1D profile histograms in directory "VeloTrackMonitor" : 81
  | ID                                            | Title                                         |      #     |     Mean   |    RMS     |  Skewness  |  Kurtosis  |