# Measurements of Inclusive W and Z Cross Sections in pp Collisions at sqrt(s)=7 TeV

7 CMS
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
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.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00554892
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Submitted on : Tuesday, January 11, 2011 - 4:18:02 PM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM

### Citation

V. Khachatryan, D. Sillou, M. Besancon, M. Dejardin, D. Denegri, et al.. Measurements of Inclusive W and Z Cross Sections in pp Collisions at sqrt(s)=7 TeV. Journal of High Energy Physics, Springer, 2011, 1, pp.080. ⟨10.1007/JHEP01(2011)080⟩. ⟨in2p3-00554892⟩

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