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1 http://d0.epe.phys.washington.edu/~gwatts/research/d0/Higgs/wenu_trigger_studies/

2 2 Gordon Watts (UW Seattle) Higgs Meeting 8/30/2002 Samples Data –Trigger list 8.0 Data –Trigger bit 9: CEM(1,5) At 10E30 this trigger bit was running 80 Hz At 30E30 about 240 Hz. –Reprocessed with p11 –Data extracted (not trig-simmed) MC –HW, W->e –Simulated and recoed with p11.08

3 3 Gordon Watts (UW Seattle) Higgs Meeting 8/30/2002 Summary At Level 1 –CEM(1,10) –CJT(2,5) –CJT(3,3) Not useful until calorimeter is fixed L1 MET –Would have been fantastic –Almost doubles rejection at L1, eff goes down 6%. At Level 2 –1 Jet above 20 GeV –2 Jets above 10 GeV –Was not able to get electrons to work The EMF in data was peaked strongly at one Still investigating this issue

4 4 Gordon Watts (UW Seattle) Higgs Meeting 8/30/2002 Pass % as a function of cut No Cuts CJT(2,5) CJT(3,3)CEM(1,10)L2J(1,20) L2J(2,10) Data MC

5 5 Gordon Watts (UW Seattle) Higgs Meeting 8/30/2002 Rates L2@10E30L2@30E30 CEM(1,5)Rejection: 1 Rate: 80 Hz Rejection: 1 Rate: 240 Hz CEM(1,10) CJT(3,3) CJT(2,5) Rejection: 2.8 Rate: 30 Hz Rejection: 2.8 Rate: 85 Hz +l2j(1,20) l2j(2,20) Rejection: 5.5 Rate: 15 Hz Rejection: 5.5 Rate: 43 Hz If we don’t join other groups this will get prescaled at lumi Within Reason (but requires L3!) w/MET: Rejection 8.8

6 6 Gordon Watts (UW Seattle) Higgs Meeting 8/30/2002 The Top Trigger CEM(1,10)CJT(2,5)This is great L2j(1,10)L2em(1,10)This should work (baring L2 em problems) L3ele(1,15,shwr)l3jet(2,15)This needs to be checked; top is more jetty than WH…


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