RD add inclusive X ee with LL , LU, UU pairs and single L track with MedianDEDX cut

Line is developed from Stripping Bu2LLK but running the di-electron maker on

• long + upstream + downstream tracks and vetoing the down-down category. An additional line is made with just the leptons pairs in full DST to allow further analysis possible

Additionally a single-electron long track selected using the MEDIANDEDX is used as well.

• long tracks single track with MEDIANDEDX also included.

All tracks which are supposed to have a Velo segment are also cut for the MEDIANDEDX

• Di-Electron skelethon in place with RICH PID cuts and CALO PID cuts on (Up and Long)
• Mirrored cuts and stripping lines from Bu2LLK for B2eeX with m(ee) cut for conversion.
• Inclusive gamma->ee displaced from LL, LU, UU pairs adding the MedianDEDX cut on the velo segment of tracks
• Di-Hadron makers to recheck
• Single electron Long with MEDIAN_DEDX cut on top?
• Skelethon for the Isolation variable in place as well as the SS of lepton part
• More decays with displaced di-electron covered by di-electron [need post-combine particles in BHadronCompleteEvent]

FYI @clangenb

The rate obtained now are the following. @chefdevi the Long-Downstream category is also included now where the LONG is cutted for the MEDIANDEDX, tough for the Rate control Down-Down is not included After discussion with some Run2 reconstruction experts, it makes sense to see long-downstream converted photon due to a combination of clone killing and pattern recognition logics reducing the performance when velo hits are overlapping.

• Long/Down pair is now cut for 100 MeV mass window to boost efficiencies according to MC studies.

We are currently testing the lines over K*gamma simulation recently produced with SplitSim. So far we don't see issue in merging the line With !1853 (merged) merged ,

StrippingReport                                                INFO Event 100000, Good event 100000
 |                                              *Decision name*|*Rate,%*|*Accepted*| *Mult*|*ms/evt*|
 |_StrippingGlobal_                                            |  0.8460|       846|       |   8.718|
 |_StrippingSequenceStreamLeptonic_                            |  0.6170|       617|       |   7.176|
 |!StrippingHb2XGammaConverted_b2xsingleconversionsLine        |  0.6170|       617|  3.668|   6.428|
 |!StrippingHb2XGammaConverted_b2xsingleconversionsLine_TIMING |  0.6170|       617|  3.668|   0.055|
 |_StrippingSequenceStreamBhadronCompleteEvent_                |  0.2720|       272|       |   1.318|
 |!StrippingHb2XGammaConverted_ee_LL_anyconvertedLine          |  0.1220|       122|  1.025|   0.754|
 |!StrippingHb2XGammaConverted_ee_LD_anyconvertedLine          |  0.0230|        23|  1.000|   0.031|
 |!StrippingHb2XGammaConverted_ee_UU_anyconvertedLine          |  0.0000|         0|  0.000|   0.025|
 |!StrippingHb2XGammaConverted_ee_LU_anyconvertedLine          |  0.1030|       103|  1.019|   0.026|
 |!StrippingHb2XGammaConverted_ee_UD_anyconvertedLine          |  0.0000|         0|  0.000|   0.024|
 |!StrippingHb2XGammaConverted_eeLine                          |  0.0770|        77|  3.675|   0.070|
 |!StrippingHb2XGammaConverted_eeSSLine                        |  0.0250|        25|  3.520|   0.059|
 |!StrippingHb2XGammaConverted_ee_LL_anyconvertedLine_TIMING   |  0.1220|       122|  1.025|   0.027|
 |!StrippingHb2XGammaConverted_ee_LD_anyconvertedLine_TIMING   |  0.0230|        23|  1.000|   0.022|
 |!StrippingHb2XGammaConverted_ee_UU_anyconvertedLine_TIMING   |  0.0000|         0|  0.000|   0.024|
 |!StrippingHb2XGammaConverted_ee_LU_anyconvertedLine_TIMING   |  0.1030|       103|  1.019|   0.021|
 |!StrippingHb2XGammaConverted_ee_UD_anyconvertedLine_TIMING   |  0.0000|         0|  0.000|   0.026|
 |!StrippingHb2XGammaConverted_eeLine_TIMING                   |  0.0770|        77|  3.675|   0.064|
 |!StrippingHb2XGammaConverted_eeSSLine_TIMING                 |  0.0250|        25|  3.520|   0.037|

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The lines added in Leptonic stream are :

• StrippingHb2XGammaConverted_b2xsingleconversionsLine :
  • single-long track with MEDIANDEDX cut combined to a set of 1-hadron,2-hadron,3-hadrons, one electron is lost, but recoverable with HOP mass tricks or tools Christoph developed.

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The lines added in BHadronCompleteEvent stream are :

• StrippingHb2XGammaConverted_eeLine :
  • 1-2,3 hadrons combined to a DiElectron made by LL, LU, UU, DD, LD pairing where for Long and Upstream a MEDIANDEDX cut is applied. Upstream tracks are cut for 0-pT as they aim to pick up soft conversions
• StrippingHb2XGammaConverted_eeSSLine:
  • same as above but with same sign electrons
• StrippingHb2XGammaConverted_ee_{LL,LD,UU,LU,UD}_anyconvertedLine :
  • inclusive di-electorn pair filtered as StrippingHb2XGammaConverted_eeLine which can be used afterwards in CombineParticles for any decay [ could be used for pi0 reconstruction for example ]