Renormalisation group effects on SMEFT interpretations of LHC data

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...

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Main Authors: Rafael Aoude, Fabio Maltoni, Olivier Mattelaer, Claudio Severi, Eleni Vryonidou
Format: Article
Language:English
Published: SpringerOpen 2023-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2023)191
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author Rafael Aoude
Fabio Maltoni
Olivier Mattelaer
Claudio Severi
Eleni Vryonidou
author_facet Rafael Aoude
Fabio Maltoni
Olivier Mattelaer
Claudio Severi
Eleni Vryonidou
author_sort Rafael Aoude
collection DOAJ
description 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 t t ¯ $$ t\overline{t} $$ production cross sections and differential distributions as well as on the bounds on the Wilson coefficients that can be obtained from current LHC data.
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spelling doaj.art-775fd6e6cfc44033b54cf603c88c3b0c2023-12-31T12:07:08ZengSpringerOpenJournal of High Energy Physics1029-84792023-09-012023912810.1007/JHEP09(2023)191Renormalisation group effects on SMEFT interpretations of LHC dataRafael Aoude0Fabio Maltoni1Olivier Mattelaer2Claudio Severi3Eleni Vryonidou4Centre for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de LouvainCentre for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de LouvainCentre for Cosmology, Particle Physics and Phenomenology (CP3), Université Catholique de LouvainDepartment of Physics and Astronomy, University of ManchesterDepartment of Physics and Astronomy, University of ManchesterAbstract 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 t t ¯ $$ t\overline{t} $$ production cross sections and differential distributions as well as on the bounds on the Wilson coefficients that can be obtained from current LHC data.https://doi.org/10.1007/JHEP09(2023)191Renormalization GroupSMEFTAutomation
spellingShingle Rafael Aoude
Fabio Maltoni
Olivier Mattelaer
Claudio Severi
Eleni Vryonidou
Renormalisation group effects on SMEFT interpretations of LHC data
Journal of High Energy Physics
Renormalization Group
SMEFT
Automation
title Renormalisation group effects on SMEFT interpretations of LHC data
title_full Renormalisation group effects on SMEFT interpretations of LHC data
title_fullStr Renormalisation group effects on SMEFT interpretations of LHC data
title_full_unstemmed Renormalisation group effects on SMEFT interpretations of LHC data
title_short Renormalisation group effects on SMEFT interpretations of LHC data
title_sort renormalisation group effects on smeft interpretations of lhc data
topic Renormalization Group
SMEFT
Automation
url https://doi.org/10.1007/JHEP09(2023)191
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