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VBF H- > ττ- > lept had Electron Channel

VBF H- > ττ- > lept had Electron Channel. Jaspreet Sidhu ATLAS Toronto meeting 24-08-05. Produce updated Full Simulation of H-> ττ, τ-> e  , τ-> h , with good TRT(Transition Radiation Track) simulation Improve Electron Identification Improve Reconstruction Efficiency. Goals.

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VBF H- > ττ- > lept had Electron Channel

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  1. VBF H->ττ->lept hadElectron Channel Jaspreet Sidhu ATLAS Toronto meeting 24-08-05

  2. Produce updated Full Simulation of H->ττ, τ-> e , τ-> h, with good TRT(Transition Radiation Track) simulation Improve Electron Identification Improve Reconstruction Efficiency Goals

  3. Generation + Simulation – Release 10.0.1 – Rome layout, with TRT simulation Digitization + Reconstruction – Release 10.0.1 – Default reconstruction parameters • Electrons, tau’s…, jets – R=0.4 Cone algorithm for jets – AOD objects Data Set Pythia Production H->ττ , VBF mode 10000 Events MH = 115GeV τ-> e , τ-> h (σ x BR) = 390 fb

  4. Tau is essentially a narrow jet in the dectector Tau Id Cuts abs(charge)==1 NumTrack ==1,3 likelihood >4 Elec ID hasTrack() pT > 20GeV egamma object isEM ==0 (using all the flags) Full simulation (Tau ID, Elec ID)

  5. Truth Container ( 3930 electrons , 3466 events) Begin with 33452 electron candidates Basic Cut: Pt <20GeV , HasTrack(), Egamma Object ( 5119 electrons) Elec Id (compare TRT 10.0.1)

  6. Number of Electrons Basic Cut All Electrons isEM No TRT isEM All flags

  7. epiNN Cut

  8. Production test went well (except for Condor crashes) Improving Elect ID with TRT and Isolation EoverP studies going on Tau identification still to be done Trigger to be included in the next reconstruction round Summary

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