Proposal for CSA07 Wlnu skim content

Complete: 3

Introduction

This document is a proposal for the CSA07 skimming of the W → l ν channel. The skim consists into event selection and AODSIM output.

W → μ ν skim

The event selection is performed with the OR between the singleMuIso and singleMuNoIso HLT streams:
include "HLTrigger/Configuration/data/common/HLTSetup.cff"
# Muons High L
include "HLTrigger/Muon/data/PathSingleMu_1032_Iso.cff"
include "HLTrigger/Muon/data/PathSingleMu_1032_NoIso.cff"

Two equivalent configuration files are provided to perform Skimming using input files within Trigger bits (wToMuNu_Filter.cfg) and without Trigger bits (wToMuNu_FilterTest.cfg).

The package is in the ElectroWeakAnalysis/WReco:

> cvs co ElectroWeakAnalysis/WReco

The skimming was tested with CMSSW_1_3_1_HLT5.

Follow instructions in https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideMuonHLT for the addition Tags required.

sample #evt. RECOSIM size #evt. singleMuIso #evt. singleMuNoIso #evt. after SKIM size AODSIM
Wmunu 1000 1.4 GB 629 686 729 120 MB
DY_mumu_10 1000 1.7 GB 248 606 260 45 MB
QCD_Pt_0_15 10000 6.9 GB 0 0 0 0 MB
QCD_Pt_15_20 10000 13 GB 0 1 1 0.7 MB
QCD_Pt_20_30 10000 14 GB 1 1 1 0.7 MB
QCD_Pt_30_50 10000 15 GB 1 1 1 0.7 MB
QCD_Pt_50_80 15000 26 GB 1 14 15 4.5 MB

W → e ν skim

The preliminary requirement is the single electron HLT stream:
  include "HLTrigger/Configuration/data/common/HLTSetup.cff"
# Electrons Local
  include "HLTrigger/Egamma/data/EgammaHLTLocal.cff"
  include "HLTrigger/Egamma/data/SingleElectronL1Isolated.cff"

The configuration file is

CMSSW/ElectroWeakAnalysis/WReco/test/testWenuSkim.cfg

The skimming was tested in CMSSW_1_3_1_HLT5 on a signal sample and on some backgrounds:

sample #evt. RECOSIM size #evt. after SKIM size AODSIM
Wenu 1000 1.4 GB 557 86 MB
DY_ee 1000 1.4 GB 165 28 MB
Wtaunu 1000 1.7 GB 24 5 MB

Review Status

Editor/Reviewer and date Comments
EzioTorassa - 23 July 2007 page author
MartinaMalberti - 27 June 2007 page author

Responsible: EzioTorassa
Last reviewed by:

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Topic revision: r8 - 2007-07-23 - EzioTorassa



 
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