Constraining four-heavy-quark operators with top-quark, Higgs, and electroweak precision data

Repository KITopen (Karlsruhe Institute of Technology) 2026 Open access

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Authors: Stefano Di Noi, H. El Faham, Ramona Gröber, Marco Vitti, Eleni Vryonidou
DOI: 10.5445/ir/1000189697
Cited by: 0

Abstract

We establish constraints on the dimension-six four-heavy-quark operators in the Standard Model Effective Field Theory (SMEFT) by synthesising LHC measurements of top-quark and single-Higgs production with electroweak precision observables. We scrutinise the choice of the γ5 scheme in single-Higgs calculations, demonstrating its non-negligible impact on SMEFT fits.

Fields of Study & Subjects

Particle physics theoretical and experimental studies Quantum Chromodynamics and Particle Interactions Advanced Mathematical Theories and Applications

Publication details

Journal / source
Repository KITopen (Karlsruhe Institute of Technology)
Publication date
1 January 2026
Language
EN