Comments on a new `full colour' parton shower

Jack Holguin, Jeffrey R. Forshaw, Simon Plätzer

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.

Particle Physics, Research Platform Erwin Schrödinger International Institute for Mathematics and Physics
External organisation(s)
University of Manchester, Erwin Schrödinger Institut
Publication date
Austrian Fields of Science 2012
103012 High energy physics
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