Automated one-loop computations in the SMEFT
Abstract
We present the automation of one-loop computations in the standard-model effective field theory at dimension six. Our general implementation, dubbed SMEFT@NLO, covers all types of operators: bosonic, two- and four-fermion ones. Included ultraviolet and rational counterterms presently allow for fully differential predictions, possibly matched to 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.
Keywords
Cite
@article{arxiv.2008.11743,
title = {Automated one-loop computations in the SMEFT},
author = {Céline Degrande and Gauthier Durieux and Fabio Maltoni and Ken Mimasu and Eleni Vryonidou and Cen Zhang},
journal= {arXiv preprint arXiv:2008.11743},
year = {2021}
}
Comments
6 pages, 3 figures, 4 tables, v2: matches published version, minor changes and new scale choice in four-top-quark production (table II)