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arxiv: 1004.1659 · v2 · submitted 2010-04-09 · ✦ hep-ph · hep-th

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Next-to-Leading Order QCD Predictions for Z,gamma^*+3-Jet Distributions at the Tevatron

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classification ✦ hep-ph hep-th
keywords distributionsgammanext-to-leadingorderpredictionsratiostevatronadditional
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Using BlackHat in conjunction with SHERPA, we have computed next-to-leading order QCD predictions for a variety of distributions in Z,gamma*+1,2,3-jet production at the Tevatron, where the Z boson or off-shell photon decays into an electron-positron pair. We find good agreement between the NLO results for jet p_T distributions and measurements by CDF and D0. We also present jet-production ratios, or probabilities of finding one additional jet. As a function of vector-boson p_T, the ratios have distinctive features which we describe in terms of a simple model capturing leading logarithms and phase-space and parton-distribution-function suppression.

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