FTK H->  update Catalin, Tony. Recap - slides 2-9.

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Presentation transcript:

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: / 19k7.4%16% ± 2.3% –dijet3: / 18k5.6%18% ± 1.9% –dijet4: / 13k5.4%20% ± 2.9% –dijet5: / 17k4.3%19% ± 2.3% –dijet6: / 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