H -> ττ Process

Goal of the group

Group Contacts

Group Members

  • Experiment: Everybody who wants to contribute
  • Theory: Everybody who wants to contribute

Plan of the Activity (both Higgs signals and SM backgrounds)

  • differential K-factor: want to evaluate ratio of NLO cross-sections with and without experimental cuts and compare it with ratio given by MC generators using in analysis
  • overview of background determination methods (data-driven, non-data driven)
    • QCD - using data OS/SS non-isol muon-tau pairs and assuming OS/SS non-isol muon = OS/SS isol muon. Mass shape from data SS isol muon-tau pair.
    • W+jets - normalization on data W enriched area MT(l+MET) > 40 GeV and extraponation into signal area from MC. Want to know unceratinty of extrapolation.
    • Z->tautau - using data Z->mumu events and replacing real muons with MC taus.
  • list of LO/NLO Monte Carlo's
  • wish List for theorists
    • gg->H - implementation in POWHEG SUSY gg->H with t and b quarks in loop (Alessandro Vicini ?)
    • gg->bbH - implemenation in POWHEG

Common cuts definition between ATLAS and CMS

  • CMS cuts
    • SUSY H->2tau->l+jet inclusive: pTl > 15 GeV, pTtau jet > 20 GeV, DR(l-tau) > 0.2, MT(l-MET) < 40 GeV
    • SUSY H->2tau->l+jet with single b-tagging: at least one b-tagged jet pT > 30 GeV, |eta-j| < 2.4
    • qq->qqH, H->2tau->l+jet: pTl > 15 GeV, pTtau jet > 30 GeV, DR(l-tau) > 0.3, eta_j1 x eta_j2 < 0, |eta_j| < 4.5, Et_j > 30 GeV, M_j1_j2 > 40 GeV, MT(lepton+MET) < 40 GeV, jet veto: no jet with pT raw > 10 GeV (corresponds to pT ~ 20 GeV corrected) between tagging jets.

Available Tools





-- ReiTanaka - 02-Oct-2010

This topic: LHCPhysics > WebHome > CrossSections > LHCHWGTautau
Topic revision: r2 - 2010-10-18 - AlexandreNikitenko
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