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Automation of antenna subtraction in colour space: gluonic processes

Chen, X.; Gehrmann, T.; Glover, E.W.N.; Huss, A.; Marcoli, M.

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Authors

X. Chen

T. Gehrmann

A. Huss

M. Marcoli



Abstract

We present the colourful antenna subtraction method, a reformulation of the antenna subtraction scheme for next-to-next-to-leading order (NNLO) calculations in QCD. The aim of this new approach is to achieve a general and process-independent construction of the subtraction infrastructure at NNLO. We rely on the predictability of the infrared singularity structure of one- and two-loop amplitudes in colour space to generate virtual subtraction terms and, subsequently, we define an automatable procedure to systematically infer the expression of the real subtraction terms, guided by the correspondence between unintegrated and integrated antenna functions. To demonstrate the applicability of the described approach, we compute the full colour NNLO correction to gluonic three-jet production pp(gg) → ggg, in the gluons-only assumption.

Citation

Chen, X., Gehrmann, T., Glover, E., Huss, A., & Marcoli, M. (2022). Automation of antenna subtraction in colour space: gluonic processes. Journal of High Energy Physics, 2022(10), Article 99. https://doi.org/10.1007/jhep10%282022%29099

Journal Article Type Article
Acceptance Date Oct 7, 2022
Online Publication Date Oct 14, 2022
Publication Date 2022-10
Deposit Date Oct 17, 2022
Publicly Available Date Mar 28, 2024
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2022
Issue 10
Article Number 99
DOI https://doi.org/10.1007/jhep10%282022%29099

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.





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