Measurement of the Inclusive W and Z Production Cross Sections in pp Collisions at sqrt(s) = 7 TeV

By The Cms Collaboration. 2011

230 citations recorded by the source corpus.

A measurement of inclusive W and Z production cross sections in pp collisions at √ s = 7 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) × B(W → `ν) = 10.30 ± 0.02 (stat.) ± 0.10 (syst.) ± 0.10 (th.) ± 0.41 (lumi.) nb and σ(pp → ZX) × B(Z → `+`−) = 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)×B(W→ `ν)) / (σ(pp→ ZX)×B(Z→ `+`−)) = 10.54± 0.07 (stat.)± 0.08 (syst.)± 0.16 (th.) and (σ(pp→W+X)×B(W+ → `+ν)) / (σ(pp→W−X)×B(W− → `−ν)) = 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 parton distribution functions. Submitted to the Journal of High Energy Physics ∗See Appendix A for the list of collaboration members ar X iv :1 10 7. 47 89 v1 [ he pex ] 2 4 Ju l 2 01 1

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/2b6fda023f1beb04f3e6cd2ebc12115ee76ce447

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Citations in the corpus

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