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Event Selection - Electron p T > 20 GeV/c - Electron Isolation < 0.1 - Standard Electron Identification - Electron abs(eta) < 2.5 - Missing Transverse Energy > 20 GeV - At less one jet is b (>2.03). M(jj) Reconstruction - Jet p T > 30 GeV/c
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Event Selection - Electron pT > 20 GeV/c - Electron Isolation < 0.1 - Standard Electron Identification - Electron abs(eta) < 2.5 - Missing Transverse Energy > 20 GeV - At less one jet is b (>2.03) M(jj) Reconstruction - Jet pT > 30 GeV/c - HighEfficenecy b tag < 2.03 - abs(eta) <3 - ΔR(jj) > 0.5 1 BG study in PAT CMSSW_3_5_7 All of these using this event selection “Old cuts” *With L2L3 energy correction Data set: /TTbar/Spring10-START3X_V26_S09-v1/AODSIM Data set: /QCD4Jets-alpgen/Spring10-START3X_V26_S09-v1/AODSIM Data set: /WJets-madgraph/Spring10-START3X_V26_S09-v1/AODSIM Data set: /ZJets-madgraph/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt0to15/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt15to20/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt20to30/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set:/ZeeJet_Pt30to50/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt50to80/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt80to120/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt120to170/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt170to230/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt230to300/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO Data set: /ZeeJet_Pt300toInf/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO
TTBar Same Events Mixed Events 2
TTBar Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 3
TTBar After subtraction Before subtraction 4 Zoom-in
QCD4Jets Same Events Mixed Events 5
QCD4Jets Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 6
QCD4Jets After subtraction Before subtraction 7 Zoom-in
WJets Same Events Mixed Events 8
WJets Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 9
WJets After subtraction Before subtraction 10 Zoom-in
ZJets Same Events Mixed Events 11
ZJets Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 12
ZJets After subtraction Before subtraction 13 Zoom-in
ZeeJet_Pt0to15 14 No event passed the cuts
ZeeJet_Pt15to20 15 Cannot do data driven method because on event in region 300 to 500 GeV
ZeeJet_Pt20to30 Same Events Mixed Events 16
ZeeJet_Pt20to30 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 17
ZeeJet_Pt20to30 After subtraction Before subtraction 18 Zoom-in
ZeeJet_Pt30to50 Same Events Mixed Events 19
ZeeJet_Pt30to50 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 20
ZeeJet_Pt30to50 After subtraction Before subtraction 21 Zoom-in
ZeeJet_Pt50to80 Same Events Mixed Events 22
ZeeJet_Pt50to80 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 23
ZeeJet_Pt50to80 After subtraction Before subtraction 24 Zoom-in
ZeeJet_Pt80to120 Same Events Mixed Events 25
ZeeJet_Pt80to120 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 26
ZeeJet_Pt80to120 After subtraction Before subtraction 27 Zoom-in
ZeeJet_Pt120to170 Same Events Mixed Events 28
ZeeJet_Pt120to170 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 29
ZeeJet_Pt120to170 After subtraction Before subtraction 30 Zoom-in
ZeeJet_Pt170to230 Same Events Mixed Events 31
ZeeJet_Pt170to230 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 32
ZeeJet_Pt170to230 After subtraction Before subtraction 33 Zoom-in
ZeeJet_Pt230to300 Same Events Mixed Events 34
ZeeJet_Pt230to300 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 35
ZeeJet_Pt230to300 After subtraction Before subtraction 36 Zoom-in
ZeeJet_Pt300toInf Same Events Mixed Events 37
ZeeJet_Pt300toInf Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 38
ZeeJet_Pt300toInf After subtraction Before subtraction 39 Zoom-in