arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1402.4407hep-ph
收藏

需要正则化但产生有限结果的循环积分

Tutorial on loop integrals which need regularisation but yield finite results

Stefan Weinzierl

摘要:

在这篇教学笔记中,我将讨论单圈积分,其中(i)积分区域的不同区域导致发散,以及(ii)这些发散在所有区域的总和中抵消。这些积分不能计算没有正规化,尽管事实上,他们产生一个有限的结果。发生这种积分的典型例子是衰变H -> gamma gamma。

英文摘要:

In this pedagogical note I will discuss one-loop integrals, where (i) different regions of the integration region lead to divergences and (ii) where these divergences cancel in the sum over all regions. These integrals cannot be calculated without regularisation, in spite of the fact that they yield a finite result. A typical example where such integrals occur is the decay H --> gamma gamma.

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。

↑