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@INPROCEEDINGS{VerdurasSchaeidt:629281,
author = {Verduras Schaeidt, Alain and Braathen, Johannes and Egle,
Felix},
title = {{T}wo-{L}oop {C}orrections to {T}rilinear {H}iggs
{C}ouplings in {H}iggs {BSM} models},
reportid = {PUBDB-2025-01794},
year = {2025},
abstract = {The precise determination of the Higgs self-couplings is an
essential task for understanding electroweak symmetry
breaking and probing physics beyond the Standard Model (SM).
The calculation of two-loop corrections is important to
provide a critical test of the perturbative stability,
especially in the case of large one-loop corrections that
can occur in scenarios with extended scalar sectors.
Morever, they need to be taken into account for the future
perspective of precisely measuring the Higgs self-couplings.
In this talk, we will present our work on the leading
two-loop corrections to the trilinear Higgs couplings in the
two-Higgs-doublet model (THDM) and other models beyond the
SM. We focus in particular on the couplings hhh, hhH , which
are the most important for di-Higgs production at the
(HL-)LHC. We will discuss the technical details of the
calculation, in particular concerning the renormalization of
the alignment limit, and briefly illustrate the
phenomenological impact of our results.},
month = {Apr},
date = {2025-04-07},
organization = {KUTS14, Freiburg (Germany), 7 Apr 2025
- 9 Apr 2025},
cin = {T},
cid = {I:(DE-H253)T-20120731},
pnm = {611 - Fundamental Particles and Forces (POF4-611) / DFG
project G:(GEPRIS)520070247 - Untersuchungen von Neue Physik
mit generischen Präzisionsberechnungen (520070247)},
pid = {G:(DE-HGF)POF4-611 / G:(GEPRIS)520070247},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)6},
url = {https://bib-pubdb1.desy.de/record/629281},
}