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arXiv 2102.13609hep-ph
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强子对撞机上三喷注产生的领头色两圈QCD修正

Leading-Color Two-Loop QCD Corrections for Three-Jet Production at Hadron Colliders

S. Abreu, F. Febres Cordero, H. Ita, B. Page, V. Sotnikov

AI总结:

本文提出了强子对撞机三喷注产生NNLO QCD修正所需的完整领头色两圈贡献,获得了适用于唯象应用的解析表达式,并提供了用于高效稳定数值评估的C++库。

摘要:

我们提出了获得强子对撞机三喷注产生的次次领头阶(NNLO)QCD修正所需的完整领头色两圈贡献。我们得到了有限余量生成集的解析表达式,适用于三喷注产生的物理区域。已知欧几里得区域结果的解析延拓由对振幅的少量数值评估确定。我们获得了适用于唯象应用的解析表达式,并提出了一个用于其高效稳定数值评估的C++库。

英文摘要:

We present the complete set of leading-color two-loop contributions required to obtain next-to-next-to-leading-order (NNLO) QCD corrections to three-jet production at hadron colliders. We obtain analytic expressions for a generating set of finite remainders, valid in the physical region for three-jet production. The analytic continuation of the known Euclidean-region results is determined from a small set of numerical evaluations of the amplitudes. We obtain analytic expressions that are suitable for phenomenological applications and we present a C++ library for their efficient and stable numerical evaluation.

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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