Next-to-leading order QCD predictions for Z,gamma^*+3-Jet distributions at the tevatron.
Next-to-leading order QCD predictions for Z,gamma^*+3-Jet distributions at the tevatron.
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tevatron 上 Z,gamma^* 3-Jet 分布的次领先阶 QCD 预测。
DOI:
10.1103/physrevd.82.074002
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发表时间:
2010
影响因子:
5
通讯作者:
D. Maître
中科院分区:
文献类型:
--
作者:
C. Berger;Z. Bern;L. Dixon;F. Cordero;D. Forde;T. Gleisberg;H. Ita;D. Kosower;D. Maître
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 next-to-leading order results for jet p{sub 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{sub 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.