$ε$ -非多对数多圈积分和过程全截面的正则基$e^+e^-\to 2(Q\bar Q)$
$ε$-regular basis for non-polylogarithmic multiloop integrals and total cross section of the process $e^+e^-\to 2(Q\bar Q)$
摘要：
我们认为，在许多物理计算中的“椭圆”部门参与，可以表示通过迭代积分的结果，几乎所有的权重是合理的。我们的方法是基于$ε$ -正则基的存在性，它类似于文献[hep-ph/0601165]中定义的$ε$ -有限基。作为我们方法的一个演示，我们计算了电子-正电子碰撞中产生两个$Q\bar Q$对的总截面的光子贡献。
英文摘要：
We argue that in many physical calculations where the "eliptic" sectors are involved, one can express the results via iterated integrals with almost all weights being rational. Our method is based on the existence of $ε$-regular basis, which is akin to the $ε$-finite basis defined in Ref. [hep-ph/0601165]. As a demonstration of our technique, we calculate the photon contribution to the total cross section of the production of two $Q\bar Q$ pairs in the electron-positron collisions.
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。
