Rings and strings: a basis for understanding subleading colour and QCD coherence beyond the two-jet limit

Author(s)
Jeffrey R. Forshaw, Jack Holguin, Simon Plätzer
Abstract

Guided by the colour-diagonal structure of collinear singularities, we identify a set of kinematic basis functions that are well suited to the simplification of soft gluon emission amplitudes. In particular, these basis functions, which emerge naturally in the colour flow basis, isolate the subleading colour contributions and improve the statistical convergence of the CVolver amplitude-evolution code. They also allow us to extend current angular-ordered parton showers beyond the azimuthally-averaged, two-jet limit.

Organisation(s)
Particle Physics, Research Platform Erwin Schrödinger International Institute for Mathematics and Physics
External organisation(s)
University of Manchester, Centre National De La Recherche Scientifique (CNRS), Institut Polytechnique de Paris, Karl-Franzens-Universität Graz
Journal
Journal of High Energy Physics
Volume
2022
No. of pages
43
ISSN
1029-8479
DOI
https://doi.org/10.1007/JHEP05(2022)190
Publication date
05-2022
Peer reviewed
Yes
Austrian Fields of Science 2012
103012 High energy physics
Keywords
ASJC Scopus subject areas
Nuclear and High Energy Physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/rings-and-strings-a-basis-for-understanding-subleading-colour-and-qcd-coherence-beyond-the-twojet-limit(23e97153-0035-4a7a-8e7a-b0933cbb136c).html