MuonTrackCleaning -- Ensure that the track has at least 2 stations
Hi everybody,
the track triggering the floating point exception reported in ATLASRECTS-6516 only has valid hits in one single quadruplet.
12:51:19 MuonCombinedMuonCandidateAlg.Mu...MuidTrackCleaner 0 0 SUCCESS Calling fit with hits: 59
12:51:19 STGC STS eta -1 phi 7 chlay 1 lay 1 pad channel 44 r 2184 z -6994 phi -1.163 theta 2.839 lPos -30.55 error 37.53 residual 188 pull 5.01 (Outlier)
12:51:19 STGC STS eta -1 phi 7 chlay 1 lay 1 eta channel 397 r 2183 z -6994 phi -1.177 theta 2.839 lPos 620.69 error 0.64 residual 0.373 pull 0.526 (Outlier)
12:51:19 STGC STS eta -1 phi 7 chlay 1 lay 2 eta channel 399 r 2187 z -7005 phi -1.177 theta 2.839 lPos 625.31 error 0.65 residual 1.2 pull 1.69 (Outlier)
12:51:19 STGC STS eta -1 phi 7 chlay 1 lay 3 eta channel 400 r 2191 z -7016 phi -1.177 theta 2.839 lPos 629.10 error 0.53 residual 1.19 pull 1.97 (Outlier)
12:51:19 STGC STS eta -1 phi 7 chlay 1 lay 4 eta channel 402 r 2195 z -7027 phi -1.177 theta 2.839 lPos 632.51 error 0.60 residual 0.806 pull 1.21 (Outlier)
12:51:19 MM MMS eta -1 phi 7 chlay 1 lay 2 channel 3089 r 2223 z -7102 phi -1.177 theta 2.838 lPos 224.40 error 1.30 residual 4.18 pull 3.15 (Outlier)
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 1 pad channel 30 r 2308 z -7327 phi -1.073 theta 2.836 lPos -240.14 error 120.34 residual -4.51 pull -0.0375
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 1 phi channel 11 r 2299 z -7327 phi -1.119 theta 2.838 lPos -135.00 error 10.39 residual 101 pull 9.28
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 1 eta channel 17 r 2296 z -7327 phi -1.177 theta 2.838 lPos -531.76 error 0.54 residual -0.261 pull -0.432 (Outlier)
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 2 phi channel 11 r 2304 z -7338 phi -1.107 theta 2.837 lPos -162.45 error 10.39 residual 73.6 pull 6.78
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 2 eta channel 18 r 2299 z -7338 phi -1.177 theta 2.838 lPos -528.46 error 0.61 residual -0.738 pull -1.1 (Outlier)
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 2 pad channel 29 r 2310 z -7338 phi -1.077 theta 2.837 lPos -232.17 error 117.31 residual 3.89 pull 0.0331
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 3 pad channel 37 r 2316 z -7349 phi -1.070 theta 2.836 lPos -247.27 error 86.16 residual -10.8 pull -0.125
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 3 eta channel 19 r 2302 z -7349 phi -1.177 theta 2.838 lPos -525.43 error 0.58 residual -1.49 pull -2.32 (Outlier)
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 3 phi channel 10 r 2310 z -7349 phi -1.095 theta 2.837 lPos -190.35 error 10.39 residual 46.1 pull 4.25
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 4 phi channel 10 r 2313 z -7360 phi -1.099 theta 2.837 lPos -180.90 error 10.39 residual 56 pull 5.16
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 4 eta channel 20 r 2306 z -7360 phi -1.177 theta 2.838 lPos -521.65 error 0.62 residual -1.48 pull -2.17 (Outlier)
12:51:19 STGC STS eta -2 phi 7 chlay 2 lay 4 pad channel 40 r 2322 z -7360 phi -1.061 theta 2.836 lPos -270.07 error 94.89 residual -33.2 pull -0.349
12:51:19 MDT EML eta -2 phi 8 ml 1 lay 1 tube 36 r 4556 z -14153 phi -0.801 theta 2.830 lPos 5.36 error 0.09 r_drift 5.36 residual 1.79 pull 17.1 (Outlier)
12:51:19 MDT EML eta -2 phi 8 ml 1 lay 2 tube 36 r 4564 z -14181 phi -0.801 theta 2.830 lPos -1.99 error 0.15 r_drift -1.99 residual -0.00694 pull -0.0436 (Outlier)
12:51:19 MDT EML eta -2 phi 8 ml 1 lay 3 tube 37 r 4573 z -14209 phi -0.800 theta 2.830 lPos -8.53 error 0.07 r_drift -8.53 residual -0.979 pull -11.1 (Outlier)
12:51:19 MDT EML eta -2 phi 8 ml 2 lay 1 tube 39 r 4636 z -14408 phi -0.796 theta 2.830 lPos -5.21 error 0.09 r_drift -5.21 residual -7.21 pull -30.3 (Outlier)The fitter cannot converge to a sane curvature triggering the FPE. TO avoid the FPE, the chamber removal fit is only performed if the track has hits on 2 stations.
Closes ATLASRECTS-6516
Edited by Johannes Junggeburth