Abstract

We explore the impact of Renormalisation Group (RG) effects in the Standard Model Effective Field Theory (SMEFT) interpretations of LHC measurements. We implement the RG running and mixing for the Wilson coefficients as obtained from the one-loop anomalous dimension matrix in the SMEFT into a Monte Carlo generator. This allows to consistently predict and combine in global fits collider observables characterised by different scales. As a showcase, we examine the impact of RG running in the strong coupling on the SMEFT predictions for tt¯ production cross sections and differential distributions as well as on the bounds on the Wilson coefficients that can be obtained from current LHC data.

Details

Title
Renormalisation group effects on SMEFT interpretations of LHC data
Author
Aoude, Rafael 1 ; Maltoni, Fabio 2 ; Mattelaer, Olivier 1 ; Severi, Claudio 3   VIAFID ORCID Logo  ; Vryonidou, Eleni 3 

1  Université Catholique de Louvain, Centre for Cosmology, Particle Physics and Phenomenology (CP3), Louvain-la-Neuve, Belgium (GRID:grid.7942.8) (ISNI:0000 0001 2294 713X) 
2  Université Catholique de Louvain, Centre for Cosmology, Particle Physics and Phenomenology (CP3), Louvain-la-Neuve, Belgium (GRID:grid.7942.8) (ISNI:0000 0001 2294 713X); Dipartimento di Fisica e Astronomia, Università di Bologna and INFN, Sezione di Bologna, Bologna, Italy (GRID:grid.470193.8) (ISNI:0000 0004 8343 7610) 
3  University of Manchester, Department of Physics and Astronomy, Manchester, UK (GRID:grid.5379.8) (ISNI:0000 0001 2166 2407) 
Pages
191
Publication year
2023
Publication date
Sep 2023
Publisher
Springer Nature B.V.
e-ISSN
10298479
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1007/JHEP09(2023)191
ProQuest document ID
2869800443
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.