Automated one-loop computations in the standard model effective field theory
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.
- Publication:
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Physical Review D
- Pub Date:
- May 2021
- DOI:
- arXiv:
- arXiv:2008.11743
- Bibcode:
- 2021PhRvD.103i6024D
- Keywords:
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- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- E-Print:
- 6 pages, 3 figures, 4 tables, v2: matches published version, minor changes and new scale choice in four-top-quark production (table II)