Measurement of the production cross section for $Z/{\gamma }^{\ast }$ in association with jets in pp collisions at $\sqrt{s}$ = 7 TeV with the ATLAS Detector

Abstract

We present results on the production of jets of particles in association with a $Z/{\gamma }^{\ast }$ boson, in proton-proton collisions at $\sqrt{s}=7$ TeV with the ATLAS detector at the LHC. The analysis includes the full 2010 data set, collected with a low rate of multiple proton-proton collisions in the accelerator, corresponding to an integrated luminosity of $36\mathrm{p}{\mathrm{b}}^{-1}$. Inclusive jet cross sections in $Z/{\gamma }^{\ast }$ events, with $Z/{\gamma }^{\ast }$ decaying into electron or muon pairs, are measured for jets with transverse momentum $p_T>$ 30 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.

arXiv commentPresented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 3 pages, 5 figures

Cited by in corpus (2)

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