A simplified expression for the one-loop soft-gluon current with massive fermions
High Energy Physics - Phenomenology
2018-04-09 v1 High Energy Physics - Theory
Abstract
We present a much simpler analytic expression for the UV un-renormalized one-loop soft-gluon current which controls the infra-red behavior of one-loop QCD amplitudes with massive fermions when an external gluon becomes soft. The result is given entirely in terms of standard polylogarithms, is of uniform transcendentality and is well-suited for computer implementation.
Cite
@article{arxiv.1804.02069,
title = {A simplified expression for the one-loop soft-gluon current with massive fermions},
author = {Michal Czakon and Alexander Mitov},
journal= {arXiv preprint arXiv:1804.02069},
year = {2018}
}
Comments
3 pages