Comments on a new `full colour' parton shower
High Energy Physics - Phenomenology
2020-03-16 v1 High Energy Physics - Experiment
Abstract
A new parton shower algorithm has been presented with the claim of providing soft-gluon resummation at `full colour' (arXiv:2001.11492). In this paper we show that the algorithm does not succeed in this goal. We show that full colour accuracy requires the Sudakov factors to be defined at amplitude level and that the simple parton-shower unitarity argument employed in arXiv:2001.11492 is not sufficient.
Cite
@article{arxiv.2003.06399,
title = {Comments on a new `full colour' parton shower},
author = {Jack Holguin and Jeffrey R. Forshaw and Simon Plätzer},
journal= {arXiv preprint arXiv:2003.06399},
year = {2020}
}
Comments
7 pages