A fully differential SMEFT analysis of the golden channel using the method of moments

Banerjee, Shankha; Gupta, Rick S.; Ochoa-Valeriano, Oscar; Spannowsky, Michael; Venturini, Elena

doi:10.1007/jhep06(2021)031

A fully differential SMEFT analysis of the golden channel using the method of moments

Banerjee, Shankha; Gupta, Rick S.; Ochoa-Valeriano, Oscar; Spannowsky, Michael; Venturini, Elena

Authors

Shankha Banerjee

Rick S. Gupta

Oscar Ochoa-Valeriano

Professor Michael Spannowsky michael.spannowsky@durham.ac.uk
Director

Elena Venturini

Abstract

The Method of Moments is a powerful framework to disentangle the relative contributions of amplitudes of a specific process to its various phase space regions. We apply this method to carry out a fully differential analysis of the Higgs decay channel h → 4ℓ and constrain gauge-Higgs coupling modifications parametrised by dimension-six effective operators. We find that this analysis approach provides very good constraints and minimises degeneracies in the parameter space of the effective theory. By combining the decay h → 4ℓ with Higgs-associated production processes, Wh and Zh, we obtain the strongest reported bounds on anomalous gauge-Higgs couplings.

Citation

Banerjee, S., Gupta, R. S., Ochoa-Valeriano, O., Spannowsky, M., & Venturini, E. (2021). A fully differential SMEFT analysis of the golden channel using the method of moments. Journal of High Energy Physics, 2021(6), Article 31. https://doi.org/10.1007/jhep06%282021%29031

Journal Article Type	Article
Acceptance Date	May 20, 2021
Online Publication Date	Jun 4, 2021
Publication Date	2021
Deposit Date	Aug 5, 2021
Publicly Available Date	Aug 5, 2021
Journal	Journal of High Energy Physics
Print ISSN	1126-6708
Publisher	Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed	Peer Reviewed
Volume	2021
Issue	6
Article Number	31
DOI	https://doi.org/10.1007/jhep06%282021%29031

Files

Published Journal Article (Advance online version) (840 Kb)
PDF

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

Copyright Statement
Advance online version 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.