A measurement of the ratio of the production cross sections for $W$ and $Z$ bosons in association with jets with the ATLAS detector - INSPIRE

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A measurement of the ratio of the production cross sections for $W$ and $Z$ bosons in association with jets with the ATLAS detector

ATLAS

Collaboration

Aug 27, 2014

20 pages

Published in:

Eur.Phys.J.C 74 (2014) 12, 3168

Published: Dec 2, 2014

e-Print:

1408.6510 [hep-ex]

DOI:

10.1140/epjc/s10052-014-3168-9

Report number:

CERN-PH-EP-2014-200

Experiments:

CERN-LHC-ATLAS

View in:

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Abstract: (Springer)

The ratio of the production cross sections for

W

and

Z

bosons in association with jets has been measured in proton–proton collisions at

\sqrt{s}=7\,\mathrm {TeV}

with the ATLAS experiment at the Large Hadron Collider. The measurement is based on the entire 2011 dataset, corresponding to an integrated luminosity of

4.6\,\mathrm {fb}^{-1}

. Inclusive and differential cross-section ratios for massive vector bosons decaying to electrons and muons are measured in association with jets with transverse momentum

p_\mathrm {T} >30\,\mathrm {GeV}

and jet rapidity

|y| < 4.4

. The measurements are compared to next-to-leading-order perturbative QCD calculations and to predictions from different Monte Carlo generators implementing leading-order matrix elements supplemented by parton showers.

Note:

20 pages plus author list + cover pages (35 pages total), 10 figures, 7 tables, submitted to Eur. Phys. J. C. All figures, including auxiliary figures, are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2012-25/

differential cross section: ratio
jet: rapidity
parton: showers
quantum chromodynamics: perturbation theory
p p: scattering
higher-order: 0
higher-order: 1
ATLAS
jet: transverse momentum
CERN LHC Coll

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