Impact of NLO EW and QCD corrections to dimension-6 SMEFT coefficients constraints in Higgs decays
Abstract
This paper presents the impact of the inclusion of next-to-leading-order (NLO) QCD and electroweak (EW) corrections for dimension-6 Standard Model Effective Field Theory (SMEFT) predictions for the Higgs decays in Higgs couplings measurements at the Large Hadron Collider. Such higher-order corrections will be increasingly important for the precise Higgs and electroweak measurements expected at the High-Luminosity Large Hadron Collider (HL-LHC). The results are compared with a SMEFT parameterisation employing inputs from a previous ATLAS study, in which the dimension-6 SMEFT contributions are evaluated for each production and decay process at the lowest non-vanishing perturbative QCD order of the corresponding SM process. The effects of the SMEFT NLO QCD/EW contributions to the Higgs decay channels are largest for 2-fermion operators involving the third generation. The sensitivity to the Higgs tri-linear coupling is also explored.
Related
- Three-loop QCD corrections to heavy-to-light form factors and applications to inclusive B decays
- Next-to-leading order QCD corrections to fully charm tetraquark radiative decays
- Higher-order corrections to beta decays and nuclear structure
- Electroweak corrections to the SM-like Higgs boson decays and the Higgs trilinear coupling in the real Higgs triplet model
- Radiative decays of J/ψ, ψ(2S)→γη(′) in perturbative QCD with relativistic corrections
BibTeX
@misc{bellafronte2026impact,
title = {{Impact of NLO EW and QCD corrections to dimension-6 SMEFT coefficients constraints in Higgs decays}},
author = {Luigi Bellafronte and Ana Rosario Cueto Gómez and Sally Dawson and Clara Del Pio and Matthew Forslund and Pier Paolo Giardino and Andrea Visibile},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.28464},
eprint = {2608.28464},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.28464},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Impact of NLO EW and QCD corrections to dimension-6 SMEFT coefficients constraints in Higgs decays
AU - Luigi Bellafronte
AU - Ana Rosario Cueto Gómez
AU - Sally Dawson
AU - Clara Del Pio
AU - Matthew Forslund
AU - Pier Paolo Giardino
AU - Andrea Visibile
PY - 2026
DA - 2026/08/28
PB - arXiv
DO - 10.48550/arxiv.2608.28464
UR - https://arxiv.org/abs/2608.28464
AB - This paper presents the impact of the inclusion of next-to-leading-order (NLO) QCD and electroweak (EW) corrections for dimension-6 Standard Model Effective Field Theory (SMEFT) predictions for the Higgs decays in Higgs couplings measurements at the Large Hadron Collider. Such higher-order corrections will be increasingly important for the precise Higgs and electroweak measurements expected at the High-Luminosity Large Hadron Collider (HL-LHC). The results are compared with a SMEFT parameterisation employing inputs from a previous ATLAS study, in which the dimension-6 SMEFT contributions are evaluated for each production and decay process at the lowest non-vanishing perturbative QCD order of the corresponding SM process. The effects of the SMEFT NLO QCD/EW contributions to the Higgs decay channels are largest for 2-fermion operators involving the third generation. The sensitivity to the Higgs tri-linear coupling is also explored.
ER -