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Title: Measurements of inclusive W and Z cross sections in pp collisions at sqrt(s)=7 TeV

Abstract

Measurements of inclusive W and Z boson production cross sections in pp collisions at sqrt(s)=7 TeV are presented, based on 2.9 inverse picobarns of data recorded by the CMS detector at the LHC. The measurements, performed in the electron and muon decay channels, are combined to give sigma(pp to WX) times B(W to muon or electron + neutrino) = 9.95 \pm 0.07(stat.) \pm 0.28(syst.) \pm 1.09(lumi.) nb and sigma(pp to ZX) times B(Z to oppositely charged muon or electron pairs) = 0.931 \pm 0.026(stat.) \pm 0.023(syst.) \pm 0.102(lumi.) nb. Theoretical predictions, calculated at the next-to-next-to-leading order in QCD using recent parton distribution functions, are in agreement with the measured cross sections. Ratios of cross sections, which incur an experimental systematic uncertainty of less than 4%, are also reported.

Authors:
 [1];
  1. Yerevan Physics Institute (Aremenia)
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS Colloboration
OSTI Identifier:
1176782
Report Number(s):
CERN-PH-EP-2010-050; CMS-EWK-10-002; FERMILAB-PUB-10-623-CMS
Journal ID: ISSN 1029-8479; ArticleNumber: 80; arXiv eprint number arXiv:1012.2466
Resource Type:
Journal Article
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Volume: 2011; Journal Issue: 1; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Khachatryan, V., and et al.,. Measurements of inclusive W and Z cross sections in pp collisions at sqrt(s)=7 TeV. United States: N. p., 2011. Web. doi:10.1007/JHEP01(2011)080.
Khachatryan, V., & et al.,. Measurements of inclusive W and Z cross sections in pp collisions at sqrt(s)=7 TeV. United States. doi:10.1007/JHEP01(2011)080.
Khachatryan, V., and et al.,. Sat . "Measurements of inclusive W and Z cross sections in pp collisions at sqrt(s)=7 TeV". United States. doi:10.1007/JHEP01(2011)080. https://www.osti.gov/servlets/purl/1176782.
@article{osti_1176782,
title = {Measurements of inclusive W and Z cross sections in pp collisions at sqrt(s)=7 TeV},
author = {Khachatryan, V. and et al.,},
abstractNote = {Measurements of inclusive W and Z boson production cross sections in pp collisions at sqrt(s)=7 TeV are presented, based on 2.9 inverse picobarns of data recorded by the CMS detector at the LHC. The measurements, performed in the electron and muon decay channels, are combined to give sigma(pp to WX) times B(W to muon or electron + neutrino) = 9.95 \pm 0.07(stat.) \pm 0.28(syst.) \pm 1.09(lumi.) nb and sigma(pp to ZX) times B(Z to oppositely charged muon or electron pairs) = 0.931 \pm 0.026(stat.) \pm 0.023(syst.) \pm 0.102(lumi.) nb. Theoretical predictions, calculated at the next-to-next-to-leading order in QCD using recent parton distribution functions, are in agreement with the measured cross sections. Ratios of cross sections, which incur an experimental systematic uncertainty of less than 4%, are also reported.},
doi = {10.1007/JHEP01(2011)080},
journal = {Journal of High Energy Physics (Online)},
issn = {1029-8479},
number = 1,
volume = 2011,
place = {United States},
year = {2011},
month = {1}
}