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1 W/Z Planning - 2010 Monte Carlo samples 7 TeV – W, Z, top, QCD, EW (tau+DY).. [ Ping and Wayne State ] Trigger – L1 and HLT. Good runs. Lumi segments.

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Presentation on theme: "1 W/Z Planning - 2010 Monte Carlo samples 7 TeV – W, Z, top, QCD, EW (tau+DY).. [ Ping and Wayne State ] Trigger – L1 and HLT. Good runs. Lumi segments."— Presentation transcript:

1 1 W/Z Planning - 2010 Monte Carlo samples 7 TeV – W, Z, top, QCD, EW (tau+DY).. [ Ping and Wayne State ] Trigger – L1 and HLT. Good runs. Lumi segments. HLT -> PD set. [ Tata, Fan ] Data processing and samples – PD, SD and W/Z EW skim, [Efe – 2009 data ] First data samples – skim muon candidates – QCD isolation study,…. Follow T&P for psi and upsilon. [Ping and Fan, PKU on psi polariz ] We are interested in data processing/reducing in this context. There probably is a similar effort within the EW group. We must coordinate with them. I suppose TTU can do that. Our ultimate focus is Z asymmetry. Muon reco – using Z T&P tools for eff, charge mis-id etc. [ Pooja ] MET reco – evaluate different algos in data (jets ?). MET in Z events? Remove 1 muon ? [ Tata ]

2 2 W/Z planning - II QCD bkgnd [ Pooja ] First data look at – some soft muons from b pairs and decays in flight. Isolation variables – which to choose Tools – template and ABCD, crosscheck Systematics EWK bkgnd [ Rochester ] Monte Carlo for tau and DY – several MC to evaluate systematics Data driven? In DY shrink |y| coverage and extrapolate – systematics. Check on U. Minn use of HF in ee

3 3 W/Z Planning - III PDF [ Lenny, Tata] Establish 2 or more PDF, CTEQ, MRS … Establish the “errors” on a given PDF set – e.g. the 40 CTEQ sets. Check the tools supplied by the EW group – e.g. PDF systematics. (Renata) Monte Carlo [ Ping, Tata, Roch ] For W and Z aysm we need to use MC to compare to the data RESBOS + FEWZ ? – NLO, NNLO Draft papers – doing this exercise will indicate all the steps that need to be covered. Start with CDF/D0 as templates. [ Lenny – W, Arie – Z asym]

4 4 W/Z Planning - IV Make sure to speak at EW mu meetings Submit the draft papers to EW mu group Write up the AFB note in full detail [ Rochester + Renata] Closure for 2-> 2 no ISR or FSR ( done – Dec. 2009 ) Cuts to limit ISR (jet veto) and FSR ( Z Pt and gamma veto) Unfolding for FSR and mass resolution Final residual Monte Carlo correction – sets systematic errors, driven by PDF.

5 5 W/Z Planning - V Do W asym and AFB all together – sets base of SM rediscovery expertise. Then branch out into W CI [FNAL – Fan, Ting. Lenny], DY CI [FNAL, Wayne State] and Z’ in AFB [Roch, CBPF, FNAL] Groups should sign onto both common tasks and specific tasks Rutgers [ e W asym, 1 PD ?] FNAL [ 3 FNAL PD + 2 Guest PD - W, Z asym] Rochester [ 2 PD ] TATA [ 1 GS ] Wayne State [ 1 PD, 1 GS ] Purdue ? Is there a follow on after psi/upsilon ? Texas Tech [ 1 PD + 1 GS + with time additional manpower] Beijing ? PKU? [ 1 Guest GS ]

6 6 LHC – 2010 Run, We must be Prepared ! L for 1 month run Integrated LTriggerProcessComments 10 28 10nb -1  bB ~ 600 nb. Setup – run single electron, muon, photon g+g -> b+B  900,000 JJ, 6000 bB, 1200 1 , 60 2  Establish  jet tag 80 2e and 2  events from  10 29 100 nb -1 Setup dimuon, dielectron   v ~ 10 nb q+Q->W->  +v (D-Y)  1000  from W->  + v Lumi – standard candle (look at high Mt tail) 100 2e and 2  events from Υ 10 30 1 pb -1 Run dilepton trigger   ~ 1.5 nb  tT ~ 630 pb q+Q->Z->  +  (D-Y) g+g->t+T 1500 dimuons from Z-mass scale, resolution Lumi- standard candle, high M 600 t + T produced 10 31 10 pb -1 End of ’07 Pilot Run Setup, J*MET  q  ~ 40 pb   ~ 24 pb g+q->Z+q->  +  +q q+Q->  +-  (tree)  400 Z + J events with Z->dimuons – Z+J balance, calib Estimate J + MET ( q + v ) 240 diphoton events with M > 60 GeV 6000 t + T 150 Z->tau pairs into dileptons > 8 GeV * MET > 15 GeV 10 32 100 pb -1  qQZ ~ 170 pb  qgZg ~ 32 pb  tT ~ 630 pb g+g->q+Q+Z g+q->q+g+Z+g 3000 J+J+Z->vv events, Pt>30 500 J+J+Z->  +  events, Pt>30 600 J+J+J+Z->vv events 10000 J+J+J+J+  +v events 10 33 1 fb -1 (1% of design L for 1 yr) End of ’08 Physics Run M of dijet in 100000 top events, W->  +v – set Jet energy scale with W mass. Dimuon mass > 1 TeV, start discovery search, diphoton search, SUSY search


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