Measurements of Inclusive $W$ and $Z$ Cross Sections in $pp$ Collisions at $\sqrt{s}=7$ TeV - INSPIRE

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Measurements of Inclusive $W$ and $Z$ Cross Sections in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

Dec, 2010

38 pages

Published in:

JHEP 01 (2011) 080

e-Print:

1012.2466 [hep-ex]

DOI:

10.1007/JHEP01(2011)080

Report number:

CERN-PH-EP-2010-050,
CMS-EWK-10-002

Experiments:

CERN-LHC-CMS

View in:

reference search563 citations

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Abstract: (arXiv)

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.

Hadron-Hadron Scattering
parton: distribution function
cross section: ratio
Z0: inclusive production
W: inclusive production
higher-order: 2
CERN LHC Coll
CMS
p p: inclusive reaction
intermediate boson: leptonic decay

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