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Muon HLT: status of the algorithms and performance

Muon HLT: status of the algorithms and performance. Sergio Grancagnolo for the Muon HLT group. Summary. Performances Efficiencies of muFast, muComb, TrigMoore Efficiencies and p T resolutions for MuidSA and MuidCB EF Comparison TrigMuonEF vs TrigMoore

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Muon HLT: status of the algorithms and performance

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  1. Muon HLT: status of the algorithms and performance Sergio Grancagnolo for the Muon HLT group

  2. Summary • Performances • Efficiencies of muFast, muComb, TrigMoore • Efficiencies and pT resolutions for MuidSA and MuidCB • EF • Comparison TrigMuonEF vs TrigMoore • TRT only chains: comparison with all ID reconstruction

  3. LVL2: muFast efficiency wrt LVL1 vs. pT vs. eta e322_s461_r534 OFLCOND-SIM-00-00-03 e322_s461_r535known problems of the real detector (dead channels, noisy channels, etc.)

  4. LVL2: muComb efficiency wrt LVL1 vs. pT vs. eta e322_s461_r534 e322_s461_r535

  5. EF: MS reconstruction wrt LVL2 vs. pT vs. eta e322_s461_r534 e322_s461_r535

  6. EF: Muon extrapolated and combined reconstruction wrt LVL2 Combination Extrapolation e322_s461_r534 e322_s461_r535

  7. Muon EF: pT resolution Combination Extrapolation e322_s461_r534 e322_s461_r535

  8. TrigMuonEF - Introduction • Validation of TrigMuonEF wrt TrigMoore performance • Based on AODs produced in 14.2.20, bugfix + tags to fix bug #39808 • MuonRdoToPrepData-01-03-14 • RecExCond-00-01-39 • MuonRecExample-00-13-20 • Only mu6 (TrigMoore) and mu6_ef (TrigMuonEF) enabled • Consistent threshold cuts at L2 • valid3.005200.T1_McAtNlo_Jimmy.digit.RDO.e322_s46 • ~19k ttbar events 8

  9. Efficiency vs eta TrigMoore Efficiency w.r.t. L2 muComb TrigMuonEF Efficiency Efficiency Extrapolator (MuidStandalone) MS extrapolated @IP Combined (MuidCombined) h h 9

  10. Turn-on curves Efficiency Efficiency Full circles = TrigMoore Open circles = TrigMuonEF Extrapolator barrel Extrapolator endcaps Efficiency w.r.t. L2 muComb pt pt No cuts Efficiency Efficiency pT > 6 GeV Combined barrel Combined endcaps pT > 20 GeV pT > 40 GeV pt pt 10

  11. Fake and good tracks Same DR (<0.1) cut for both extrapolation and combined • ttbar • events TrigMoore TrigMuonEF TrigMoore TrigMoore TrigMuonEF TrigMuonEF DR distribution extrapolator DR distribution combined 11

  12. eta-phi resolutions vs pt • Each resolution (eta,phi) at vertex is comparable • The TrigMuonEFExtrapolator has worse phi resolution than TrigMoore TrigMuonEF extrapolator TrigMuonEF combined TrigMoore extrapolator TrigMoore combined 12

  13. pT Resolutions • The TrigMuonEFExtrapolator has sligthly better pT resolution than TrigMoore for pT<40GeV TrigMoore TrigMuonEF PT resolution PT resolution Extrapolator (MuidStandalone) Combined (MuidCombined) pt pt 13

  14. LVL2 ID tracking with TRT Using TRTSegFinder_Muon on a cosmic run No tracks combined Need to pass to the cosmic configuration for ID algos • muComb code with TRT only ready (TrigmuComb-00-00-42) • Not yet in the release • Require a LVL2 chain under developement

  15. Setup to run TrigMuonEF with TRT only • Tested on val,rel_2,14.2.30 (last week) with testMuonSliceAthenaModernRDO.py on tt events • Tags required • Reconstruction/MuonIdentification/MuidCombinedTools-00-03-01 • Trigger/TrigAlgorithms/TrigMuonEF-00-00-48 • Instead of • TrigEFIDInsideOut_Muon() • TrigMuonEFCombinerConfig() use • TrigEFIDOutsideInTRTOnly_Muon() • TrigMuonEFCombinerConfigTRTOnly() within Trigger/TriggerCommon/TriggerMenuPython/python/Muon.py • TrigMuonEFCombiner configured with • MuidMatchMaker.MatchTrtTracks = True • self.IdTracks = "InDetTrigTrackSlimmerTRTOnly_Muon_EFID" • ID tracks name changed from InDetTrigParticleCreation_Muon_EFID to InDetTrigParticleCreationTRTOnly_Muon_EFID

  16. Comparison TRT only / all ID • Number of TRT hits shown • More TRT only tracks reconstructed Entries 4143 Entries 4365 TRT only All ID Tracks that do not reack TRT

  17. Comparison TRT only / all ID (II) • eta distribution for MS-ID combined tracks • Fake TRT only tracks killed in combination • Lost tracks are outside the TRT acceptance Entries 884 Entries 811 TRT only All ID

  18. Conclusions • Muon HLT is performing well • Transition to TrigMuonEF ready • To be enabled the pT hypo algo if requested • First results with TRT only tracks encouraging • To complete configuration for LVL2

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