1 Exclusive DPE Higgs generators in fast CMS simulation Marek Taševský (Physics Inst. Prague) Low-x workshop - Sinaia (Romania) 01/07 2005 1. New RP acceptances 2. Comparison of DPEMC, ExHuMe and EDDE at parton, hadron and detector levels 3. Event yields for H->WW
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Exclusive DPE Higgs generators in fast CMS simulation
Exclusive DPE Higgs generators in fast CMS simulation. Marek Taševský (Physics Inst. Prague) Low-x workshop - Sinaia (Romania) 01/07 2005. 1. New RP acceptances 2. Comparison of DPEMC, ExHuMe and EDDE at parton, hadron and detector levels 3. Event yields for H->WW. - PowerPoint PPT Presentation
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Exclusive DPE Higgs generators in fast CMS simulation
- Both protons accepted in one of two RP’s (220, 420)- (L1 muons taken from FAMOS. El.+quarks correspond to parton level)- Various cut scenarios acc.to current CMS L1 thresholds:
- Semi-leptonic W decay:- 1e (pt>29 GeV, |η|<2.5) or 1μ (pt>14 GeV, |η|<2.1) or- 1e (pt>20 GeV, |η|<2.5) + 2 quarks (pt>25GeV,|η|<5) or - 1μ (pt>10 GeV, |η|<2.1) + 2 quarks (pt>25GeV, |η|<5)
- Fully leptonic W decay:- 2e (pt>17 GeV, |η|<2.5) or 2μ (pt>3 GeV, |η|<2.1) or- eμ (pte>17 GeV, |η|<2.5 and ptμ>3 GeV, |η|<2.1) or - 2e (ptmax>29 GeV,|η|<2.5) or 2μ (ptmax>14 GeV,|η|
<2.1) or- eμ (pte>29 GeV, |η|<2.5 or ptμ>14 GeV, |η|<2.1)
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Excl. DPE H->WW: Event yield for L=30 fb-1
ExhuMe 1.3 and new RP acceptances semi-lept fully-lept Mh[GeV] σXBR[fb] Acc.[%] cms atlas cms atlas
Summary - Recent versions of DPEMC, EDDE and ExHuMe generators as well as new RP acceptances installed in cms fast simulation - Updated event yields for H->WW channel. They still may increase if the selection cuts are optimized. Bg for H->WW expected to be small. H->bb: selection cuts being optimized. LO+NLO bg under study
- Hot topic these days: Which model gives the best description of data??? The problem is that the only data available are those of Rjj distr. from CDF. And these are very tricky… Very difficult to follow their procedure!