Jet Production Rates in Association with $W$ and $Z$ Bosons in $pp$ Collisions at $\sqrt{s}=7$ TeV - INSPIRE

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Jet Production Rates in Association with $W$ and $Z$ Bosons in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

Oct, 2011

45 pages

Published in:

JHEP 01 (2012) 010

e-Print:

1110.3226 [hep-ex]

DOI:

10.1007/JHEP01(2012)010

Report number:

CERN-PH-EP-2011-125,
CMS-EWK-10-012

Experiments:

CERN-LHC-CMS

View in:

reference search129 citations

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Abstract: (arXiv)

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.

jet: hadroproduction
jet: transverse energy
charge: asymmetry
quantum chromodynamics: perturbation theory
p p: inclusive reaction
new physics
scaling
CMS
jet: associated production
W: hadroproduction

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