Chatrchyan, S;
Khachatryan, V;
Sirunyan, AM;
Tumasyan, A;
Adam, W;
Bergauer, T;
Dragicevic, M;
... Collaboration, CMS; + view all
(2011)
Measurement of the inclusive W and Z production cross sections in pp collisions at root s = 7 TeV with the CMS experiment.
Journal Of High Energy Physics
, 2011
(10)
, Article 132. 10.1007/JHEP10(2011)132.
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Abstract
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→ℓν) = 10.31 ± 0.02 (stat.) ± 0.09 (syst.) ± 0.10 (th.) ± 0.41 (lumi.) nb and σ(pp → ZX) × B(Z→ℓ+ℓ−) = 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→ℓν) /(σ(pp → ZX) × B(Z→ℓ+ℓ−) = 10.54 ± 0.07 (stat.) ± 0.08 (syst.) ± 0.16 (th.) and (σ(pp → W+ X) × B(W+→ℓ+ν) /(σ(pp → W− X) × B(W−→ℓ−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.
| Type: | Article |
|---|---|
| Title: | Measurement of the inclusive W and Z production cross sections in pp collisions at root s = 7 TeV with the CMS experiment |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/JHEP10(2011)132 |
| Publisher version: | http://dx.doi.org/10.1007/JHEP10(2011)132 |
| Language: | English |
| Additional information: | This article is distributed under the CC BY 4.0 License [http://creativecommons.org/licenses/by/4.0/], which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Hadron-Hadron Scattering |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1335999 |
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