• 1) SUS-13-007: covers the single lepton + btag using the Lepton Spectrum (LS) and Delta Phi (DP) methods. Lepton studies are documented in AN-2013-035. Targeting Moriond.
• 2) AOD rereco is used for periods A, B, and part C; prompt reco is used for part C and D.
• 3) The triggers used for electrons:
  • HLT_CleanPF(NoPU )HT300_Ele40_CaloIdVT_TrkIdT
  • HLT_Mu40_PF(NoPU )HT350 and lepton + HT + MET
  • HLT_PF(NoPU )HT350_Mu15_PFMET45
  • HLT_PF(NoPU )HT400_Mu5_PFMET45
  • HLT_CleanPF(NoPU )HT300_Ele15_CaloIdT_CaloIsoVL_TrkIdT_TrkIsoVL_PFMET45
  • HLT_CleanPF(NoPU )HT350_Ele5_CaloIdT_CaloIsoVL_TrkIdT_TrkIsoVL_PFMET45

Efficiencies are mesured via Z T&P in events that are acquired by the analysis triggers (therefore with correctly biased kinematics)

• 4) Lepton selections are fully documented here: https://twiki.cern.ch/twiki/bin/view/CMS/SingleLepton2012#Electron_Selection https://twiki.cern.ch/twiki/bin/view/CMS/SingleLepton2012#Muon_Selection
• 5) Lepton reconstruction and ID efficiency scale factors between data and MC (full simulation)

Electron ID + Isolation 0.9987 ? 0.0015(stat.)?0.02(sys.) Electron GSF tracking 0.9944 ? 0.0003(stat.)?0.02(sys.) Muon ID1 0.9981 ? 0.0007(stat.)?0.02(sys.) Muon ID2 1.0015 ? 0.0006(stat.)?0.01(sys.) Muon track 0.9953 ? 0.0001(stat.)?0.005(sys.)

Lepton reconstruction and ID efficiency scale factors between data and MC (fast simulation) Electron ID + Isolation (average) 0.9613 ? 0.0014(stat.)?0.08(sys.) Electron ID + Isolation (barrel) 0.9900 ? 0.0007(stat.)?0.03(sys.) Electron ID + Isolation (endcap) 0.8725 ? 0.0014(stat.)?0.07(sys.) Electron GSF tracking 0.9902 ? 0.0004(stat.)?0.01(sys.) Muon ID1 0.9531 ? 0.0007(stat.)?0.03(sys.) Muon ID2 0.9902 ? 0.0005(stat.)?0.01(sys.) Muon track 0.9951 ? 0.0001(stat.)?0.005(sys.)

• 6)
• 7)
• 8)

| Quantity | PAT Object and Member Function | Cut | Comment |
| p_T | GsfElectron => p4().Pt() | ≥ 20 GeV | ElecHad Trigger at 15 GeV is not 100% efficient at 20 GeV |
| abs(eta) | SuperCluster => Eta() | ≤ 2.5 , >1.566 or <1.4442 | Veto EBEE transition region |
| Rel. Isolation | Barrel = ( electron->dr03TkSumPt() + max(0., electron->dr03EcalRecHitSumEt() - 1.) + electron->dr03HcalTowerSumEt() ) / electron->p4().Pt(), Endcaps = ( electron->dr03TkSumPt() + electron->dr03EcalRecHitSumEt() + electron->dr03HcalTowerSumEt() ) / electron->p4().Pt() ) | VBTF80: barrel<0.07, endcap<0.06 | |
| Identification | GsfElectron => hadronicOverEm(), deltaPhiSuperClusterTrackAtVtx(), deltaEtaSuperClusterTrackAtVtx(), sigmaIetaIeta() | VBTF80 |
| hadOverEM | GsfElectron => hadronicOverEm() | VBTF80: barrel<0.04, endcap<0.025 | |
| abs(deltaPhi) | GsfElectron => deltaPhiSuperClusterTrackAtVtx() | VBTF80: barrel<0.06, endcap<0.03 | |
| abs(deltaEta) | GsfElectron => deltaEtaSuperClusterTrackAtVtx() | VBTF80: barrel<0.004, endcap<0.007 | In 3_6_x this is not applied in endcap |
| sigmaIetaIeta | GsfElectron => sigmaIetaIeta() | VBTF80: barrel<0.01, endcap<0.03 | |
| Conversion rejection | gsfTrack() => trackerExpectedHitsInner() = 0, abs(dist) ≥ 0.02 && abs(delta cot(theta)) ≥ 0.02 | VBTF80 |
| Primary Vertex | abs(PV.z() - lepton.vertex.z()) | <1.0 | |
| Impact Parameter | abs(e.gsfTrack().dxy(BS)) | < 0.02 | from Muon |

-- ViktorVeszpremi - 2013-02-15