proposed cuts for w/z+gamma 2011
DESCRIPTION
Proposed cuts for W/Z+gamma 2011. Zhijun Liang. GRL. Up to D5 now. http://atlasdqm.web.cern.ch/atlasdqm/grlgen/CombinedPerf/Egamma/Eg_standard_v5/data11_7TeV.periodAllYear_DetStatus-v11-pro08-01_Eg_standard.xml. Electron quality. electron->author()=1 or electron->author()=3 - PowerPoint PPT PresentationTRANSCRIPT
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Proposed cuts for Proposed cuts for W/Z+gamma 2011W/Z+gamma 2011Zhijun Liang
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GRLGRL
Up to D5 now. http://atlasdqm.web.cern.ch/atlasdqm/grlgen/
CombinedPerf/Egamma/Eg_standard_v5/data11_7TeV.periodAllYear_DetStatus-v11-pro08-01_Eg_standard.xml
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Electron quality Electron quality electron->author()=1 or electron->author()=3OTX cleaning cut: require (el_OQ&1446)==0 fabs(el_cl_eta)<2.47, fabs(el_cl_eta)<1.37 or
fabs(el_cl_eta)>1.52 passes tight EMID: require el_tight == 1 ET> 25GeV
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Photon quality Photon quality OTX cleaning cut: require
(ph_OQ&34214)==0 Fabs(ph_cl_eta)<2.37, fabs(ph_cl_eta)<1.37
or fabs(ph_cl_eta)>1.52 passes tight EMID: require el_tight == 1Ph_Etcone40_ptcorr<5GeV ( more study are
needed!) ET> 15GeVDR(l;gamma)>0.7
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Jet cleaning Jet cleaning reject events with a bad jet in EM
scale > 20 GeV
https://twiki.cern.ch/twiki/bin/view/AtlasProtected/HowToCleanJets#Bad_jets_rel16_data
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Jet definition for jet Jet definition for jet counting counting LC calibrated pT>30GeV|eta|<4.4jet_akt4topoem_isUgly == 0Delta R (medium Electron/jet)
>0.6, need to check 0.2<DR<0.6
Delta R(tight isolated photon/jet)>0, need to check 0.2<DR<0.6
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W(enu)+gammaW(enu)+gammaGRL, Egamma stream,
EF_e20_medium>=1 tight electronVeto 2nd medium electron MET_Localhad_topo>25GeV(after jet
cleaning)Transverse mass >40GeV>=1 tight isolated photon pT>15GeVExclude Z-like events
◦80GeV<M(e;gamma) <100GeVThree body transverse mass>100GeV
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Z(ee)+gammaZ(ee)+gammaGRL, Egamma stream,
EF_e20_medium>=2 medium electron M(ee)>40GeV>=1 tight isolated photon
pT>15GeV
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Z(nunu)+gammaZ(nunu)+gammaGRL, Egamma stream,
EF_g40_looseMET>45GeV>=1 tight isolated photon
pT>45GeVNo high pt lepton in the events.