Publications (1)0 Total impact
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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.
10/2011;
