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Status: WW,ZZ->H-> . Catalin, Kevin, Tony, Dovid. Monte Carlo. Partially solved the MC issue: Random gen. seed not used Generate all MC in one job OK – given that this is not full simulation Real-simulation sample available? Generated 50k events WW/ZZ ->Higgs
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Status: WW,ZZ->H-> Catalin, Kevin, Tony, Dovid
Monte Carlo • Partially solved the MC issue: • Random gen. seed not used • Generate all MC in one job • OK – given that this is not full simulation • Real-simulation sample available? • Generated 50k events WW/ZZ ->Higgs • Last week – Dovid Skversky joined: • REU student – will work on these studies exclusively.
HEPG-level plots Pt and of the positive tau Higgs Mass = 130 GeV
Leptons and Photons Require Isolated Electron Muon, or Photon
JetET ET(j1)>35 GeV ET(j2)>20 GeV
Which jet Et? • Two kinds of jets in the atlfast ntuple: • JET(reconstructed jets) • JETB(reconstructed jets calibrated with atlfastB) Leading jet 2nd Leading jet
Erik’s parametrization • Considered all jets with Et<300 GeV and ||<2.8 • Example: 50 GeV threshold
Efficiency vs Threshold • Thresholds from 30 GeV to 200 GeV • Exponential decrease • What about lepton triggers: • Only 2 studied: MU20 and EM25I • Efficiency: 26% • Overlap? • Only the 50 GeV jet thresh: • Overlap is 25% with lep trig. • Need more study
Plans for the next meeting • Compare to Bruce results, for the same cuts. • Find out about full-simulation samples • Study the triggers in more detail. Also: • Include missing Et • ‘tau’ jets • Look at backgrounds, if available