1

W/Z Planning - 2010W/Z Planning - 2010W/Z Planning - 2010W/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

W/Z planning - IIW/Z planning - IIW/Z planning - IIW/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

W/Z Planning - IIIW/Z Planning - IIIW/Z Planning - IIIW/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

W/Z Planning - IVW/Z Planning - IVW/Z Planning - IVW/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

W/Z Planning - VW/Z Planning - VW/Z Planning - VW/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

LHC – 2010 Run, We must be LHC – 2010 Run, We must be Prepared !Prepared !

LHC – 2010 Run, We must be LHC – 2010 Run, We must be Prepared !Prepared !

L for 1 month run

Integrated L Trigger Process Comments

1028 10nb-1 bB ~ 600 nb. Setup – run single electron, muon, photon

g+g -> b+B

900,000 JJ, 6000 bB,

1200 1, 60 2Establish jet tag

80 2e and 2 events from

1029 100 nb-1 Setup dimuon, dielectron

v ~ 10 nbq+Q->W->+v

(D-Y)

1000 from W-> + v

Lumi – standard candle (look at high Mt tail)

100 2e and 2 events from Υ

1030 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

1031 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

1032 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

1033 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