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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 least 3 jets with Pt(L2L3) > 20 GeV - At least one of above jets is b (>2.03).
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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 least 3 jets with Pt(L2L3) > 20 GeV - At least one of above jets is b (>2.03) M(jj) Reconstruction - Jet pT > 25 GeV/c - HighEfficenecy b tag < 2.03 - abs(eta) <3 - ΔR(jj) > 0.5 BG study in PAT CMSSW_3_5_7 All of these using this event selection Data set:/ZeeJet_Pt30to50/Spring10-START3X_V26_S09-v1/GEN-SIM-RECO *With L2L3 energy correction *Add 2 more event selections At least 3 jets with Pt(L2L3) > 20 GeV and At least one of above jets is b (>2.03) * Change Jet Pt to > 25 GeV/c
ZeeJet_Pt30to50 Same Events Mixed Events 2
ZeeJet_Pt30to50 Same event 300-500 GeV/c2 Mixed event after normalization Log Scale Normalization Region 3
ZeeJet_Pt30to50 After subtraction Before subtraction 4 Zoom-in