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arXiv · 1110.3226

Jet Production Rates in Association with W and Z Bosons in pp Collisions at sqrt(s) = 7 TeV

CMS Collaboration
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Abstract

Measurements of jet production rates in association with W and Z bosons for jet transverse momenta above 30 GeV are reported, using a sample of proton-proton collision events recorded by CMS at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 36 inverse picobarns. The study includes the measurement of the normalized inclusive rates of jets sigma(V + >= n jets)/sigma(V), where V represents either a W or a Z. In addition, the ratio of W to Z cross sections and the W charge asymmetry as a function of the number of associated jets are measured. A test of Berends--Giele scaling at sqrt(s) = 7 TeV is also presented. The measurements provide a stringent test of perturbative-QCD calculations and are sensitive to the possible presence of new physics. The results are in agreement with the predictions of a simulation that uses explicit matrix element calculations for final states with jets.

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CMS Collaboration. 2011-10-14. Jet Production Rates in Association with W and Z Bosons in pp Collisions at sqrt(s) = 7 TeV. https://doi.org/10.1007/jhep01(2012)010

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