Pittau Roberto
Departamento de Física Teórica y del Cosmos and CAFPE, Universidad de Granada, Campus Fuentenueva s. n., 18071 Granada, Spain.
Eur Phys J C Part Fields. 2014;74(1):2686. doi: 10.1140/epjc/s10052-013-2686-1. Epub 2014 Jan 23.
I apply FDR-a recently introduced four-dimensional approach to quantum field theories (QFTs)-to the computation of the NLO QCD corrections to [Formula: see text] in the large top mass limit. The calculation involves all key ingredients of QCD-namely ultraviolet, infrared, and collinear divergences, besides [Formula: see text] renormalization-and paves the way for successful use of FDR in massless one-loop QFT computations. I show in detail how the correct result emerges in FDR, and discuss the translation rules to dimensional regularization.
我将最近引入的用于量子场论（QFTs）的四维方法——FDR应用于在大顶夸克质量极限下对[公式：见正文]的NLO QCD修正的计算。该计算涉及QCD的所有关键要素——即紫外、红外和共线发散，以及[公式：见正文]重整化——并为在无质量单圈QFT计算中成功使用FDR铺平了道路。我详细展示了在FDR中如何得出正确结果，并讨论了到维数正规化的转换规则。
