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Automated one-loop computations in the SMEFT
- Source :
- Phys. Rev. D 103, 096024 (2021)
- Publication Year :
- 2020
-
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.<br />Comment: 6 pages, 3 figures, 4 tables, v2: matches published version, minor changes and new scale choice in four-top-quark production (table II)
- Subjects :
- High Energy Physics - Phenomenology
High Energy Physics - Experiment
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. D 103, 096024 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2008.11743
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevD.103.096024