arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.01820hep-phhep-th
收藏

双回路前导彩色QCD对$q \bar{q} \to γγg$和$q g \to γγq$的校正

Two-loop leading colour QCD corrections to $q \bar{q} \to γγg$ and $q g \to γγq$

Bakul Agarwal, Federico Buccioni, Andreas von Manteuffel, Lorenzo Tancredi

摘要:

我们提出了夸克-反夸克和夸克-胶子通道中产生双光子和喷流的主要色和光费米子平面双环修正。特别是,我们计算的干扰的两个回路的振幅与相应的树水平的,总结了颜色和偏振。我们的计算使用了最新的部分积分简化和多元部分分数分解算法,以产生紧凑和易于使用的结果。我们已经实现了我们的结果在一个有效的C++数值代码。我们还提供了它们的解析表达式的Mathematica格式。

英文摘要:

We present the leading colour and light fermionic planar two-loop corrections for the production of two photons and a jet in the quark-antiquark and quark-gluon channels. In particular, we compute the interference of the two-loop amplitudes with the corresponding tree level ones, summed over colours and polarisations. Our calculation uses the latest advancements in the algorithms for integration-by-parts reduction and multivariate partial fraction decomposition to produce compact and easy-to-use results. We have implemented our results in an efficient C++ numerical code. We also provide their analytic expressions in Mathematica format.

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。

↑