A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at √s = 8  TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS detector corresponding to an integrated luminosity of 18.2 +/- 0.5  pb-1. The measured total inclusive cross sections times branching fractions are σ(pp -> WX) x B(W -> ℓν) = 12.21 +/- 0.03(stat) +/- 0.24(syst) +/- 0.32(lum)  nb and σ(pp -> ZX) x B(Z -> ℓ+ℓ−) = 1.15 +/- 0.01(stat) +/- 0.02(syst) +/- 0.03(lum)  nb for the dilepton mass in the range of 60-120 GeV. The measured values agree with next-to-next-to-leading-order QCD cross section calculations. Ratios of cross sections are reported with a precision of 2%. This is the first measurement of inclusive W and Z boson production in proton-proton collisions at √s = 8  TeV.

Measurement of Inclusive W and Z Boson Production Cross Sections in pp Collisions at sqrt(s) = 8 TeV / S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Ero, C. Fabjan, M. Friedl, R. Fruhwirth, V. M. Ghete, N. Hormann, J. Hrubec, M. Jeitler, W. Kiesenhofer, V. Knunz, M. Krammer, I. Kratschmer, D. Liko, et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 112:191802:(2014), pp. 1-17. [10.1103/PhysRevLett.112.191802]

Measurement of Inclusive W and Z Boson Production Cross Sections in pp Collisions at sqrt(s) = 8 TeV

CIULLI, VITALIANO;D'ALESSANDRO, RAFFAELLO;FOCARDI, ETTORE;FROSALI, SIMONE;GONZI, SANDRO;GORI, VALENTINA;LENZI, PIERGIULIO;TROPIANO, ANTONIO;
2014

Abstract

A measurement of total and fiducial inclusive W and Z boson production cross sections in pp collisions at √s = 8  TeV is presented. Electron and muon final states are analyzed in a data sample collected with the CMS detector corresponding to an integrated luminosity of 18.2 +/- 0.5  pb-1. The measured total inclusive cross sections times branching fractions are σ(pp -> WX) x B(W -> ℓν) = 12.21 +/- 0.03(stat) +/- 0.24(syst) +/- 0.32(lum)  nb and σ(pp -> ZX) x B(Z -> ℓ+ℓ−) = 1.15 +/- 0.01(stat) +/- 0.02(syst) +/- 0.03(lum)  nb for the dilepton mass in the range of 60-120 GeV. The measured values agree with next-to-next-to-leading-order QCD cross section calculations. Ratios of cross sections are reported with a precision of 2%. This is the first measurement of inclusive W and Z boson production in proton-proton collisions at √s = 8  TeV.
2014
112:191802
1
17
S. Chatrchyan; V. Khachatryan; A. M. Sirunyan; A. Tumasyan; W. Adam; T. Bergauer; M. Dragicevic; J. Ero; C. Fabjan; M. Friedl; R. Fruhwirth; V. M. Ghe...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/879927
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