The singular behavior of one-loop massive QCD amplitudes with one external soft gluon
High Energy Physics - Phenomenology
2015-05-28 v1
Abstract
We calculate the one-loop correction to the soft-gluon current with massive fermions. This current is process independent and controls the singular behavior of one-loop massive QCD amplitudes in the limit when one external gluon becomes soft. The result derived in this work is the last missing process-independent ingredient needed for numerical evaluation of observables with massive fermions at hadron colliders at the next-to-next-to-leading order.
Cite
@article{arxiv.1107.4384,
title = {The singular behavior of one-loop massive QCD amplitudes with one external soft gluon},
author = {Isabella Bierenbaum and Michal Czakon and Alexander Mitov},
journal= {arXiv preprint arXiv:1107.4384},
year = {2015}
}
Comments
15 pages, no figures. Attached a file containing the results