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Authors

Serguei Chatrchyan, Vardan Khachatryan, AM Sirunyan, A Tumasyan, W Adam, T Bergauer, M Dragicevic, J Eroe, C Fabjan, M Friedl, R Fruehwirth, VM Ghete, J Hammer, S Haensel, M Hoch, N Hoermann, J Hrubec, M Jeitler, W Kiesenhofer, M Krammer, D Liko, I Mikulec, M Pernicka, B Rahbaran, H Rohringer, R Schoefbeck, J Strauss, A Taurok, F Teischinger, P Wagner, W Waltenberger, G Walzel, E Widl, C-E Wulz, V Mossolov, N Shumeiko, J Suarez Gonzalez, S Bansal, Leonardo Benucci, EA De Wolf, X Janssen, T Maes, L Mucibello, S Ochesanu, B Roland, R Rougny, M Selvaggi, H Van Haevermaet, P Van Mechelen, F Blekman, S Blyweert, J D’Hondt, O Devroede, R Gonzalez Suarez, A Kalogeropoulos, M Maes, W Van Doninck, P Van Mulders, GP Van Onsem, I Villella, O Charaf, B Clerbaux, G De Lentdecker, V Dero, APR Gay, GH Hammad, T Hreus, PE Marage, A Raval, L Thomas, C Vander Velde, P Vanlaer, Volker Adler, Anna Cimmino, Silvia Costantini

Publication date

2011/10/1

Journal

Journal of High Energy Physics

Volume

2011

Issue

Pages

132

Publisher

Springer-Verlag

Description

A measurement of inclusive W and Z production cross sections in pp collisions at TeV is presented. The electron and muon decay channels are analyzed in a data sample collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb− 1. The measured inclusive cross sections are σ (pp→ WX)×= 10.31±0.02 (stat.)±0.09 (syst.)±0.10 (th.)±0.41 (lumi.) nb and σ (pp→ ZX)×= 0.974±0.007 (stat.)±0.007 (syst.)±0.018 (th.)±0. 039 (lumi.) nb, limited to the dilepton invariant mass range 60 to 120 GeV. The luminosity-independent cross section ratios are (σ (pp→ WX)×/(σ (pp→ ZX)×= 10.54±0.07 (stat.)±0.08 (syst.)±0.16 (th.) and (σ (pp→ W+ X)×/(σ (pp→ W− X)×= 1.421±0.006 (stat.)±0.014 (syst.)±0.029 (th.). The measured values agree with next-to-next-to-leading order QCD cross section calculations based on recent …

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