Higgs boson pair production in SMEFT: shape and truncation studies
Abstract
We present a comparative study of the influence of Wilson coefficients on Higgs boson pair production cross sections in SMEFT up to dimension-6, also including loop-suppressed operators. Our study accounts for NLO QCD corrections, and is based on updated parametrizations of the cross section as a polynomial in the Wilson coefficients. We focus on differential distributions for the Higgs boson pair invariant mass, as well as the transverse momenta of the leading Higgs bosons, identifying benchmark scenarios exhibiting pronounced shape distortions in the mhh and pT,h distributions. While some of these scenarios remain physically meaningful under a purely linear truncation of the SMEFT expansion, others yield unphysical differential cross sections when quadratic dimension-6 contributions are omitted, exposing the breakdown of the linear approximation for large anomalous couplings.
Related
- Investigating bottom quark effects in Higgs boson pair production
- Parton-shower and fixed-order QCD effects in Higgs boson production in weak-boson fusion and its decays to bottom quarks
- One-loop QCD amplitudes for vector-boson-fusion Higgs-boson production to higher orders in ε
- Next-to-Leading-Order Multi-Jet Merging of Higgs Boson Production via Vector Boson Fusion in the Presence of Anomalous Couplings
- Three-loop QCD corrections to the production of a Higgs boson and a jet
BibTeX
@misc{bar2026higgs,
title = {{Higgs boson pair production in SMEFT: shape and truncation studies}},
author = {Manosch Bär and Bakar Chargeishvili and Ramona Gröber and Gudrun Heinrich and Konstantin Schmid},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.29132},
eprint = {2608.29132},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.29132},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Higgs boson pair production in SMEFT: shape and truncation studies
AU - Manosch Bär
AU - Bakar Chargeishvili
AU - Ramona Gröber
AU - Gudrun Heinrich
AU - Konstantin Schmid
PY - 2026
DA - 2026/08/29
PB - arXiv
DO - 10.48550/arxiv.2608.29132
UR - https://arxiv.org/abs/2608.29132
AB - We present a comparative study of the influence of Wilson coefficients on Higgs boson pair production cross sections in SMEFT up to dimension-6, also including loop-suppressed operators. Our study accounts for NLO QCD corrections, and is based on updated parametrizations of the cross section as a polynomial in the Wilson coefficients. We focus on differential distributions for the Higgs boson pair invariant mass, as well as the transverse momenta of the leading Higgs bosons, identifying benchmark scenarios exhibiting pronounced shape distortions in the m_hh and p_T,h distributions. While some of these scenarios remain physically meaningful under a purely linear truncation of the SMEFT expansion, others yield unphysical differential cross sections when quadratic dimension-6 contributions are omitted, exposing the breakdown of the linear approximation for large anomalous couplings.
ER -