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Next-to-leading order QCD predictions for Z,gamma^*+3-Jet distributions at the tevatron.

Berger, C.F. and Bern, Z. and Dixon, Lance J. and Febres Cordero, F. and Forde, D. and Gleisberg, T. and Ita, H. and Kosower, D.A. and Maitre, D. (2010) 'Next-to-leading order QCD predictions for Z,gamma^*+3-Jet distributions at the tevatron.', Physical review D., 82 (7). 074002.


Using BlackHat in conjunction with SHERPA, we have computed next-to-leading order QCD predictions for a variety of distributions in Z,γ*+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 next-to-leading order results for jet pT 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 pT, 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.

Item Type:Article
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Publisher statement:© 2010 American Physical Society
Record Created:27 Nov 2012 16:50
Last Modified:13 Aug 2015 10:26

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