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arXiv 0709.1608hep-ph
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在NNLO上e^+e^- -> 3喷流的第一个结果

First results on e^+e^- -> 3 jets at NNLO

A. Gehrmann-De Ridder, T. Gehrmann, E. W. N. Glover, G. Heinrich

摘要:

在$e^+e^-$对撞机上对QCD的精确研究是基于对事件形状和喷流速率的测量。为了与实验的高精度相匹配,需要QCD中的次-次-领先阶(NNLO)理论预测来对数据进行可靠的解释。我们报告的第一次计算的NNLO修正(${\cal O}(α_s^3)$)三喷流生产和相关的事件形状,并讨论其唯象的影响。

英文摘要:

Precision studies of QCD at $e^+e^-$ colliders are based on measurements of event shapes and jet rates. To match the high experimental accuracy, theoretical predictions to next-to-next-to-leading order (NNLO) in QCD are needed for a reliable interpretation of the data. We report the first calculation of NNLO corrections (${\cal O}(α_s^3)$) to three-jet production and related event shapes, and discuss their phenomenological impact.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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