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lepton efficiency & fake rate

page 1. lepton efficiency & fake rate. Yousuke Kataoka (University of Tokyo). 11 Sep 2007. page 2. datasets. SU3 trig1_misal1_csc11_V1.005403.SU3_jimmy_susy.recon.AOD.v12000601_tid008571 399 files (remove overlapped files: ._00004.pool.root.2, ._00013.pool.root.3)

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lepton efficiency & fake rate

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  1. page 1 lepton efficiency & fake rate Yousuke Kataoka (University of Tokyo) 11 Sep 2007

  2. page 2 datasets SU3 • trig1_misal1_csc11_V1.005403.SU3_jimmy_susy.recon.AOD.v12000601_tid008571 • 399 files (remove overlapped files: ._00004.pool.root.2, ._00013.pool.root.3) • 99700 events (file 00090 has 200 events) T1 • trig1_misal1_mc12.005200.T1_McAtNlo_Jimmy.recon.AOD.v12000604_tid007900 • 238 files • 59300 events (file 00120 has 50 events) T1 (large sample) • trig1_misal1_mc12.005200.T1_McAtNlo_Jimmy.recon.AOD.v12000604_tid008037 • 2152 files (remove overlapped files: ._01024.pool.root.3, ._01024.pool.root.4) • 537800 events

  3. page 3 definition of efficiency • Truth Lepton • • All stable generator-level lepton (e, μ) • barcode < 100000 • reject G4-lepton by barcode • • Isolation: ET(cone0.2) < 10GeV • |eta|<2.5, pT>10GeV Reconstructed Lepton • Electron • egamma Algorithm (not softe) • isEMmask 0x3ff • Isolation: ET(cone0.2) < 10GeV • |eta|<2.5, pT>5GeV • Muon • MuID Algorithm • Combined Muon (with best match) • Track match chi2 < 20 (&& >0) • Track fit chi2 / DoF< 5 • Isolation: ET(cone0.2) < 10GeV • |eta|<2.5, pT>5GeV ※ Truth-Reconstructed matching is done by dR=0.02

  4. page 4 definition of fake rate • Truth Lepton • • All stable generator-level lepton (e, μ) • barcode < 100000 • reject G4-lepton by barcode • • No isolation cut • |eta|<2.5, pT>5GeV Reconstructed Lepton • Electron • egamma Algorithm (not softe) • isEMmask 0x3ff • Isolation: ET(cone0.2) < 10GeV • |eta|<2.5, pT>10GeV • Muon • MuID Algorithm • Combined Muon (with best match) • Track match chi2 < 20 (&& >0) • Track fit chi2 / DoF< 5 • Isolation: ET(cone0.2) < 10GeV • |eta|<2.5, pT>10GeV ※ Truth-Reconstructed matching is done by dR=0.02 ※ Lepton-Jet matching is done by dR=0.2 • Truth Jet • |eta|<2.5, no pT cut • dR=0.2 far from Truth Electron (>10GeV) • separete Tau Jet component • (tau hadronic jet exists within dR=0.2 or not)

  5. Page.5 SU3

  6. Page.6 Lepton efficiency for SU3 (12.0.6.1,V1) Muon pT dependence Electron pT dependence 75.5±0.3% (pT>20GeV) 85.1±0.3% (pT>20GeV) Electron eta dependence (pT>20GeV) Muon eta dependence (pT>20GeV)

  7. Page.7 fake rate from tau jet fake rate for SU3 ～2% events fake rate for electron fake electron contribution of tau matched jet contribution of others scale down (～40%) 50-70GeV23GeV pT pT of Jet events fake rate for muon fake muon matched jet small … (maybe, no need to apply for Atlfast) pT pT of Jet

  8. numbers, efficiency, fake rate for SU3 Page.8 • basic numbers • efficiency (%) • fake rate

  9. Page.9 T1

  10. Page.10 Lepton efficiency for T1 (12.0.6.4) Muon pT dependence Electron pT dependence 73.4±0.3% (pT>20GeV) 86.0±0.3% (pT>20GeV) Electron eta dependence (pT>20GeV) Muon eta dependence (pT>20GeV)

  11. Page.11 fake rate from tau jet fake rate for T1 ～2% events fake rate for electron fake electron contribution of tau matched jet contribution of others scale down (～40%) 50-70GeV26GeV pT pT of Jet events fake rate for muon fake muon matched jet small … (maybe, no need to apply for Atlfast) pT pT of Jet

  12. numbers, efficiency, fake rate for T1 Page.12 • basic numbers • efficiency (%) • fake rate

  13. Page.13 T1 (large sample)

  14. Page.14 Lepton efficiency for T1 (large sample) Muon pT dependence Electron pT dependence 73.4±0.1% (pT>20GeV) 86.6±0.1% (pT>20GeV) Electron eta dependence (pT>20GeV) Muon eta dependence (pT>20GeV)

  15. Page.15 fake rate from tau jet fake rate for T1 (large sample) ～1.5% events fake rate for electron fake electron contribution of tau matched jet contribution of others scale down (～40%) 50-70GeV25GeV pT pT of Jet events fake rate for muon fake muon matched jet small … (maybe, no need to apply for Atlfast) pT pT of Jet

  16. numbers, efficiency, fake rate for T1 (large) Page.16 • basic numbers • efficiency (%) • fake rate

  17. Page.17 Atlfast correction

  18. Page.18 Corrected AtlfastParticleJet Container fake Jet tau AtlfastParticleJet Container ～O(10-2) scale shift non-tau fake ～40% scale shift ～O(10-3) scale shift Electron efficiency Corrected AtlfastElectron Collection AtlfastElectron Collection ～75% Muon efficiency Corrected AtlfastMuon Collection ～85% AtlfastMuon Collection missing Missing AtlfastMissingEt Corrected AtlfastMissingEt

  19. Page.19 Apply lepton efficiency to Atlfast Electron （AtlfastElectronCollection） Muon (AtlfastMuonCollection) • extracted from T1 sample (page14) • fairly smooth  no parametrization • pT-eta correlation is not considerd eta dep. (pT>20GeV) eta dep. (pT>20GeV) pT dep. pT dep. identified inefficiency identified inefficiency need e/h factor ? set 1 for temporary Missing (CorrectedAtlfastMissingEt) Jet (CorrectedAtlfastParticleJetContainer) Electron （CorrectedAtlfastElectronCollection） Muon (CorrectedAtlfastMuonCollection)

  20. Page.20 Apply fake rate to Atlfast Jet (AtlfastParticleJetContainer) • muon fake rate is less than 1/10 of electron fake rate •  not considered for temporary no tau jet ? yes fake scale shift 1.5% Electron （Corrected AtlfastElectron Collection） page 15 scale shift fake distributions every 10GeV Missing (CorrectedAtlfastMissingEt) Jet (CorrectedAtlfastParticleJetContainer)

  21. Page.21 software & validation AtlfastCorrectors… under development • lxplus: ~kataoka/public/AtlfastCorrectors • Inputs (AOD container) • AtlfastElectronCollection • AtlfastMuonCollection • AtlfastParticleJetContainer • AtlfastMissingEt • Outputs (AOD container) … can be inputs of EventView, I think … • CorrectedAtlfastElectronCollection • CorrectedAtlfastMuonCollection • CorrectedAtlfastParticleJetContainer • CorrectedAtlfastMissingEt • Ver. 00-00-01 … only support constant efficiency and fake rate • validation … not yet

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