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Completeness: 30%

PAT/ntuples

  • Samples**  MC: 311X Monte Carlo samples (even though most of these samples are not at T2's at that moment)
      • Drell-Yan:
        • /DYToMuMu_M-10To20_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /DYToMuMu_M-20_CT10_TuneZ2_7TeV-powheg-pythia/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
      • QCD
        • /QCD_Pt-15to20_MuPt5Enriched_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /QCD_Pt-20to30_MuPt5Enriched_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /QCD_Pt-30to50_MuPt5Enriched_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /QCD_Pt-50to80_MuPt5Enriched_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /QCD_Pt-80to120_MuPt5Enriched_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /QCD_Pt-120to150_MuPt5Enriched_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /QCD_Pt-150_MuPt5Enriched_TuneZ2_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
      • DY tautau
        • /DYToTauTau_M-20_CT10_TuneZ2_7TeV-powheg-pythia-tauola/Spring11-PU_S1_START311_V1G1-v2/GEN-SIM-RECO
      • Dibosons
        • /WWtoAnything_TuneZ2_7TeV-pythia6-tauola/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /WZtoAnything_TuneZ2_7TeV-pythia6-tauola/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
        • /ZZtoAnything_TuneZ2_7TeV-pythia6-tauola/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
      • Wmunu
        • /WtoMuNu_TuneD6T_7TeV-pythia6/Spring11-PU_S1_START311_V1G1-v1/GEN-SIM-RECO
    • DATA
      • /MuOnia/Run2011A-PromptReco-v1/RECO (no Mu available)
      • JSONs:
        • "Golden" /afs/cern.ch/cms/CAF/CMSCOMM/COMM_DQM/certification/Collisions11/7TeV/Prompt/Cert_160404-161312_7TeV_PromptReco_Collisions11_JSON.txt
        • Calo-free /afs/cern.ch/cms/CAF/CMSCOMM/COMM_DQM/certification/Collisions11/7TeV/Prompt/Cert_160404-161312_7TeV_PromptReco_Collisions11_JSON_MuonPhys.txt
  • Relevant software: CMSSW_4_1_3,
    • Global tag
      • Data: GR_R_311_V2 for reprocessing and GR_P_V14 for prompt reco
      • MC: MC_311_V2, START311_v2
    • ElectroWeakAnalysis/Skimming, ElectroWeakAnalysis/DYskimming, UserCode
  • how to run:  PATtuple production: see the corresponding twiki, note, a lot of code in CVS is outdated (we keep updating it)
    cmsrel CMSSW_4_1_3
    cd CMSSW_4_1_3/src
    cmsenv
    addpkg ElectroWeakAnalysis/Skimming
    cvs co -d ElectroWeakAnalysis/DYskimming -r V00-00-05 UserCode/Purdue/DYAnalysis/Skimming
    scram b

Event Selection

  • Online: HLT_Mu15_v2
  • Offline: Baseline event selection has not changed compared to 2010 analysis, see
  • Relevant software: ROOT macros for control plots and invariant mass plot are here: UserCode/Purdue/DYAnalysis/AnalysisMacros/ControlPlots

Acceptance

  • Acceptance is determined using GEN level information, which has not changed compared to the 2010 analysis
  • Use the post-FSR acceptance numbers documented in the note: AN-11-013

Efficiencies

The details on the factorization and the application of correction factors are documented here , and can be found in this talk

  • Trigger, Reconstruction: TagAndProbe, official package
  • How to run (on top of CMSSW 414):
    addpkg MuonAnalysis/MuonAssociators V01-14-00
    addpkg PhysicsTools/PatUtils
    addpkg PhysicsTools/TagAndProbe V04-00-06
    cvs co -A MuonAnalysis/TagAndProbe
    
  • Isolation: RandomCone - contacted Alexey D asking for a recipe.

Background estimation

There are various methods employed to estimate the QCD background in a data-driven way (QCD is currently the only background estimated not from MC). These are

Unfolding

FSR corrections

Systematic uncertainties

Final Plots

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