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arXiv 1812.04586hep-phhep-th
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QCD中平面双圈五胶子散射振幅的解析形式

Analytic Form of the Planar Two-Loop Five-Gluon Scattering Amplitudes in QCD

S. Abreu, J. Dormans, F. Febres Cordero, H. Ita, B. Page

摘要:

本文给出了一组独立的外胶子螺旋位形的QCD中双圈五胶子散射振幅的解析形式。这些结果包括在强子对撞机上计算次-次-领先阶QCD修正的五点双圈振幅的第一个解析结果。结果是通过从数值计算中重建解析表达式得到的。利用振幅的物理和分析性质,采用最近被分类的所谓五边形函数的最小基,降低了计算的复杂性。

英文摘要:

We present the analytic form of the two-loop five-gluon scattering amplitudes in QCD for a complete set of independent helicity configurations of external gluons. These include the first analytic results for five-point two-loop amplitudes relevant for the computation of next-to-next-to-leading-order QCD corrections at hadron colliders. The results were obtained by reconstructing analytic expressions from numerical evaluations. The complexity of the computation is reduced by exploiting physical and analytical properties of the amplitudes, employing a minimal basis of so-called pentagon functions that have recently been classified.

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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