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Published byDaisy Hall
Modified over 5 years ago
FTK H-> update Catalin, Tony
Recap - slides 2-9
LVL1 rate/eff vs -threshold Dijet (weighted J1&J2 samples) Higgs 130 GeV, had-had and lep-had weighted by BR
LVL2 efficiency If LVL2 requirements are applied only to events passing LVL1: OLD NEW –dijet1: 1-4 evts/16k10.8%22% ± 10% –dijet2: 20-120 / 19k7.4%16% ± 2.3% –dijet3: 40-150 / 18k5.6%18% ± 1.9% –dijet4: 10-90 / 13k5.4%20% ± 2.9% –dijet5: 15-120 / 17k4.3%19% ± 2.3% –dijet6: 10-110 / 18k2.8%13% ± 1.8% –dijet7: 5-60 / 7k2.7%13% ± 2.6% –dijet8: 5-50 / 8k2.3%11% ± 2.1% –Lep-had:25.2%49% ± ~1% –Had-had:39.5%89% ± ~1% Our previous scheme was overestimating the dijet rejection (and underestimating sigal acept.) 20% ± 2.6%
Dijet Efficiency/Rate out of LVL2 Dijet 1-8 added according to cross-section. For Dijet1, used eff derived from csc dijet samples (thanks Erik!) - 180k events
Signal Efficiency Trigger about 25% of Higgs events
Conclusions Estimated signal/dijet efficiencies in a consistent manner: –Same code run over both samples –L2 applied to events passing L1 Will look at forward jets (thanks Anton!)
Other Info Signal cone:R=0.07 Inner cone:R=0.1 Outer cone:R=0.4 Pt(track)>5.0 Et-thresh=25.GeV Tau-thresh=15GeV Scenario1: <=4 && 0 Scenario2: <=3 && 0 Scenario3: <=3 && <=1 Scenario4: <=2 && 0 Scenario5: <=2 && <=1 Scenario6: <=2 && <=2 Scenario7: <=1 && 0 Scenario8: <=1 && <=1 Scenario9: <=1 && <=2
Dijet Efficiency/Rate out of LVL2
Signal Et(jet) Into LVL1Out of LVL2
Dijet Et(jet) spectra
Dijet Et spectra (cont’d)
Dijet out of L1+L2
H/Abb -> 4b’s process & Multi-Et-Threshold Study for 4jet Trigger Kohei Yorita Young-Kee Kim University of the FTK Meeting on July 13 th, 2006.
First look at -jet Samples using BDT e-ID Algorithm Hai-Jun Yang University of Michigan (with X. Li and B. Zhou) ATLAS egamma Meeting March 9, 2009.
Model independent determination of the top quark Yukawa coupling from LHC and ILC data Klaus Desch, Hamburg University Markus Schumacher, Bonn University.
Valeria Perez Reale University of Bern SM Higgs Discovery Channels ATLAS High Level Trigger Trigger & Physics Selection Higgs Channels: Physics Performance.
Fully reconstructed SM 130 GeV Higgs in the lepton+hadron channel First look at the samples Catalin, Kevin, Tony Univ. of Illinois.
Trigger studies of SM 130 GeV Higgs in the lepton+hadron channel First pass at estimating trigger efficiency Higgs mass reconstruction Catalin Ciobanu,
VBF H Progress Report Catalin & Tony February 21, 2007.
FTK Studies: H hh bbbb FTK Physics Case Meeting 11/03/05 Erik Brubaker University of Chicago.
FTK Production on UC Tier3 and Hidden Valley Processes Jan 23, 2007 Erik Brubaker FTK meeting.
Progress on the FTK Physics Case (For H/Abb 4b signal) Kohei Yorita Young-Kee Kim University of FTK Meeting on January 26 th, 2006 (1)Brief Sample.
Progress on H/Abb -> 4b’s channel for the FTK physics case ~ 4jets trigger w/ and w/o FTK ~ Kohei Yorita Young-Kee Kim University of the FTK.
The Matrix Method Data-driven method of estimating the W→lv and QCD multijet contributions to sample S’.
Update on Tools FTK Meeting 06/06/06 Erik Brubaker U of Chicago.
Update on H/Abb -> 4b’s process (4jet Trigger) Kohei Yorita Young-Kee Kim University of the FTK Meeting on Sep. 7 th, 2006.
Sept 30 th 2004Iacopo Vivarelli – INFN Pisa FTK meeting Z bb measurement in ATLAS Iacopo Vivarelli, Alberto Annovi Scuola Normale Superiore,University.
On the Trail of the Higgs Boson Meenakshi Narain.
Progress on jet trigger response functions FTK Physics Case Meeting 06/16/05 Erik Brubaker University of Chicago.
Progress on FTK Studies FTK Physics Case Meeting 07/20/05 Erik Brubaker University of Chicago.
Update FTK Meeting 07/13/06 Erik Brubaker U of Chicago.
Physics Studies Update FTK Meeting 02/23/06 Erik Brubaker U of Chicago.
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