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Automated one-loop computations in the standard model effective field theory

Authors :
UCL - SST/IRMP - Institut de recherche en mathématique et physique
Degrande, Céline
Durieux, Gauthier
Maltoni, Fabio
Mimasu, Ken
Vryonidou, Eleni
Zhang, Cen
UCL - SST/IRMP - Institut de recherche en mathématique et physique
Degrande, Céline
Durieux, Gauthier
Maltoni, Fabio
Mimasu, Ken
Vryonidou, Eleni
Zhang, Cen
Source :
Physical Review D, Vol. 103, no.9, p. 096024 (2021)
Publication Year :
2021

Abstract

We present the automation of one-loop computations in the standard-model effective field theory at dimension 6. Our general implementation, dubbed smeft@nlo, covers all types of operators: bosonic and two- and four-fermion ones. Included ultraviolet and rational counterterms presently allow for fully differential predictions, possibly matched to the parton shower, up to the one-loop level in the strong coupling or in four-quark operator coefficients. Exact flavor symmetries are imposed among light quark generations, and an initial focus is set on top-quark interactions in the fermionic sector. We illustrate the potential of this implementation with novel loop-induced and next-to-leading-order computations relevant for top-quark, electroweak, and Higgs-boson phenomenology at the LHC and future colliders.

Details

Database :
OAIster
Journal :
Physical Review D, Vol. 103, no.9, p. 096024 (2021)
Notes :
English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1288279945
Document Type :
Electronic Resource