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High energy photon pairs: RS-1 Graviton study

Vladimir Litvin, Toyoko Orimoto Caltech, CMS. High energy photon pairs: RS-1 Graviton study. MC Sample. MC study to investigate L1 and HLT (in)efficiencies and optimize selection for an express stream for very high energy diphoton events

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High energy photon pairs: RS-1 Graviton study

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  1. Vladimir Litvin, Toyoko Orimoto Caltech, CMS High energy photon pairs:RS-1 Graviton study

  2. MC Sample • MC study to investigate L1 and HLT (in)efficiencies and optimize selection for an express stream for very high energy diphoton events • ~46k RS-1 G MC events • Produced at Caltech with CMSSW_1_3_1 • m=750GeV & c=0.1 • No pileup • Candidates reconstructed from two Island Basic Clusters from ECAL Barrel/Endcap with pt>100GeV

  3. Invariant Mass: 750 GeV sample MC Candidates: Reco Candidates: Mean = 719.6 GeV Sigma = 16.3 Mean = 750.0 GeV BW width = 10.6 pt_photon1>100 && pt_photon2>100

  4. Invariant Mass: 1 TeV sample MC Candidates: Reco Candidates: Mean = 960.7 GeV Sigma = 20.4 Mean = 100.0 GeV BW width = 14.1 pt_photon1>100 && pt_photon2>100

  5. L1 Trigger bits # non-zero L1 bits per event L1 bits set to 1 All events have > 0 L1 trigger bits set

  6. L1 Egamma Trigger Efficiencies Bit Nevt Eff Name 47 38107 98.3 A_EG15_Jet100 48 38021 98.1 A_EG15_TauJet50 51 19945 51.5 A_IsoEG15_HTT300 52 35566 91.8 A_EG15_HTT300 56 17452 45.0 A_IsoEG15_ETM30 57 30955 79.9 A_EG15_ETM30 62 3903 10.1 A_TripleIsoEG5 63 9063 23.4 A_TripleEG10 66 14 0.0 A_DoubleMu7_IsoEG5 67 19 0.0 A_DoubleMu7_EG5 68 211 0.5 A_DoubleIsoEG5_Mu7 69 589 1.5 A_DoubleEG5_Mu7 71 11286 29.1 A_DoubleIsoEG5_HTT150 72 37335 96.4 A_DoubleEG5_HTT150 76 10556 27.2 A_DoubleIsoEG5_ETM15 77 34677 89.5 A_DoubleEG5_ETM15 Bit Nevt Eff Name 5 767 2.0 A_SingleIsoEG5 6 760 2.0 A_SingleIsoEG10 7 2474 6.4 A_SingleIsoEG15 8 21335 55.1 A_SingleIsoEG20 9 21137 54.5 A_SingleIsoEG25 10 786 2.0 A_SingleEG5 11 788 2.0 A_SingleEG10 12 3909 10.1 A_SingleEG15 13 38693 99.9 A_SingleEG20 14 38689 99.8 A_SingleEG25 36 5257 13.6 A_DoubleIsoEG10 37 36314 93.7 A_DoubleEG20 40 325 0.8 A_Mu7_IsoEG15 41 600 1.5 A_Mu7_EG15 44 22034 56.9 A_IsoEG10_EG10 45 19234 49.6 A_IsoEG15_Jet100 46 20144 52.0 A_IsoEG15_TauJet50 EG = egamma, HTT=hadronic total energy, ETT = total transverse energy, ETM=missing transverse energy From 38748 total events

  7. L1 Trigger bits (cuts) Events that pass reco cuts (3 mass window + pt_photon1&2 > 100)

  8. L1 Trigger bits (cuts + MC Truth) Events that pass reco cuts + MC Truth match

  9. HLT Trigger bits HLT bits set to 1 # non-zero HLT bits per event Bit Nevt Eff Name 16 312 0.8 HLT1Electron 17 7 0.0 HLT2Electron 18 89 0.2 HLT2ElectronRelaxed 19 15470 39.9 HLT1Photon 20 2810 7.3 HLT2Photon 21 24490 63.2 HLT2PhotonRelaxed HLT Word: 91.0% eff From 38748 total events

  10. HLT bits (cuts) Events that pass reco cuts (3 mass window + pt_photon1&2 > 100)

  11. HLT bits (cuts + MC Truth) Events that pass reco cuts + MC Truth match

  12. S1/S9 Higher energy photon Lower energy photon Pt_photons > 30 Pt_photons > 100 Note: this is only for Barrel

  13. S9/S25 Higher energy photon Lower energy photon Pt_photons > 30 Pt_photons > 100 Note: this is only for Barrel

  14. ECAL Isolation Higher energy photon Lower energy photon Pt_photons > 30 Pt_photons > 100 Energy from basic clusters summed within R cone of 0.3 around basic cluster of photon candidate

  15. HCAL Energy Deposit Higher energy photon Lower energy photon Energy from HCAL Rechits summed within R cone of 0.3 around basic cluster of photon candidate HBHE HO Pt_photons > 30 Pt_photons > 100 HF

  16. Tracker Isolation Higher energy photon R < 0.3 0.4 0.5 Pt_photons > 30 Pt_photons > 100 Pt > 3 5 10 Number of tracks (passing pt cut) within R cone around basic cluster of photon candidate

  17. Tracker Isolation Lower energy photon R < 0.3 0.4 0.5 Pt_photons > 30 Pt_photons > 100 Pt > 3 5 10 Number of tracks (passing pt cut) within R cone around basic cluster of photon candidate

  18. Jets nJets eta phi Pt > 100 0 < Pt < 100

  19. Jets Higher energy photon pt < 50 pt < 100 Pt_photons > 30 Pt_photons > 100 Lower energy photon pt < 50 pt < 100 Number of jets (passing pt cut) within R=0.3 cone around basic cluster of photon candidate

  20. More plots • http://www.hep.caltech.edu/~toyoko/cms/plots/rs1gg/ • Next steps: • Study background samples • Energy correction

  21. L1 Trigger bits 41 A_Mu7_EG15 42 A_Mu7_Jet100 43 A_Mu7_TauJet50 44 A_IsoEG10_EG10 45 A_IsoEG15_Jet100 46 A_IsoEG15_TauJet50 47 A_EG15_Jet100 48 A_EG15_TauJet50 49 A_Jet100_TauJet50 50 A_Mu7_HTT300 51 A_IsoEG15_HTT300 52 A_EG15_HTT300 53 A_Jet100_HTT300 54 A_TauJet50_HTT300 55 A_Mu7_ETM30 56 A_IsoEG15_ETM30 57 A_EG15_ETM30 58 A_Jet100_ETM40 59 A_TauJet50_ETM40 60 A_HTT200_ETM40 61 A_TripleMu7 62 A_TripleIsoEG5 63 A_TripleEG10 64 A_TripleJet70 65 A_TripleTauJet50 66 A_DoubleMu7_IsoEG5 67 A_DoubleMu7_EG5 68 A_DoubleIsoEG5_Mu7 69 A_DoubleEG5_Mu7 70 A_DoubleMu7_HTT150 71 A_DoubleIsoEG5_HTT150 72 A_DoubleEG5_HTT150 73 A_DoubleJet50_HTT150 74 A_DoubleTauJet50_HTT150 75 A_DoubleMu7_ETM15 76 A_DoubleIsoEG5_ETM15 77 A_DoubleEG5_ETM15 78 A_DoubleJet50_ETM15 79 A_DoubleTauJet50_ETM15 80 A_QuadJet50 81 A_MinBias_HTT10 82 A_ZeroBias 20 A_SingleTauJet20 21 A_SingleTauJet60 22 A_SingleTauJet100 23 A_SingleTauJet140 24 A_SingleTauJet180 25 A_HTT100 26 A_HTT200 27 A_HTT300 28 A_HTT400 29 A_HTT500 30 A_ETM20 31 A_ETM40 32 A_ETM60 33 A_ETM80 34 A_ETM100 35 A_DoubleMu7 36 A_DoubleIsoEG10 37 A_DoubleEG20 38 A_DoubleJet100 39 A_DoubleTauJet50 40 A_Mu7_IsoEG15 0 A_SingleMu3 1 A_SingleMu10 2 A_SingleMu14 3 A_SingleMu20 4 A_SingleMu25 5 A_SingleIsoEG5 6 A_SingleIsoEG10 7 A_SingleIsoEG15 8 A_SingleIsoEG20 9 A_SingleIsoEG25 10 A_SingleEG5 11 A_SingleEG10 12 A_SingleEG15 13 A_SingleEG20 14 A_SingleEG25 15 A_SingleJet20 16 A_SingleJet60 17 A_SingleJet100 18 A_SingleJet140 19 A_SingleJet180

  22. HLT Trigger bits 0 HLT1jet 1 HLT2jet 2 HLT3jet 3 HLT4jet 4 HLT1MET 5 HLT2jetAco 6 HLT1jet1METAco 7 HLT1jet1MET 8 HLT2jet1MET 9 HLT3jet1MET 10 HLT4jet1MET 11 HLT2jetvbfMET 12 HLT1MET1HT 13 HLT1jetPE1 14 HLT1jetPE3 15 HLT1jetPE5 32 HLTB2Jet 33 HLTB3Jet 34 HLTB4Jet 35 HLTB1JetMu 36 HLTB2JetMu 37 HLTB3JetMu 38 HLTB4JetMu 39 HLT1Tau 40 HLT2Tau 41 HLTPixelTau 42 HLTXElectronBJet 43 HLTXMuonBJet 44 HLTXMuonBJetSoftMuon 45 HLTZeroBias 46 HLTMinBias 47 HLTMinBiasPixel 16 HLT1Electron 17 HLT2Electron 18 HLT2ElectronRelaxed 19 HLT1Photon 20 HLT2Photon 21 HLT2PhotonRelaxed 22 HLT1MuonIso 23 HLT1MuonNonIso 24 HLT2MuonIso 25 HLT2MuonNonIso 26 HLT2MuonJPsi 27 HLT2MuonUpsilon 28 HLT2MuonZ 29 HLTNMuonNonIso 30 HLT1MuonStartup 31 HLTB1Jet

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