Constraining gluon distribution in a proton in CMS detector using the process “Z+jet” S. Banerjee, M. Dittmar, M. Guchait, Sangeeta Singh India-CMS Collaboration Meeting Delhi University, Delhi, 28 Sept. 2007
Constraining gluon distribution in a proton in CMS detector using the process “Z+jet”
Dec 30, 2015
Constraining gluon distribution in a proton in CMS detector using the process “Z+jet”. S. Banerjee, M. Dittmar, M. Guchait, Sangeeta Singh. India-CMS Collaboration Meeting Delhi University, Delhi, 28 Sept. 2007. Reconstruction using datasets in CMSSW_1_3_1. - PowerPoint PPT Presentation
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Constraining gluon distribution in a protonin CMS detector using the process “Z+jet”S. Banerjee, M. Dittmar, M. Guchait, Sangeeta Singh
India-CMS Collaboration Meeting Delhi University, Delhi, 28 Sept. 2007
Reconstruction using datasets in CMSSW_1_3_1Datasets used: /ZmumuJets_Pt_80_120/CMSSW_1_3_1-Spring07-1201/GEN-SIM-DIGI-RECO
CKIN(3) = 80 GeV and CKIN(4) = 120 GeV
Selection cuts used for event selection
Numver of events
7542
7282
4894
4081
3214
Total number of events = 15000
pT and | η| distribution of
Z reconstructed out of
two muons μ+ and μ-
pT and | η| distribution
of muon μ+
pT and | η| distribution of 1st jet
Variation with different PDFs
CTEQ
MRST
Using CMSSW_1_6_0
Number of events = 5000
pT of raw Z
Rapidity of raw Z
Future Plan:
Detailed study with LHAPDF.
May be we can include Z → e+e- final state
Background (mainly QCD) need to be estimated
How do the distribution change with higher order effects? Study using
MCFM, MCNLO
Upgrade CMSSW version to CMSSW_1_6_0
Contribute to CSA07
Thank you
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