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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},
}