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000629281 041__ $$aEnglish
000629281 1001_ $$0P:(DE-H253)PIP1102306$$aVerduras Schaeidt, Alain$$b0$$eCorresponding author
000629281 1112_ $$aKUTS14$$cFreiburg$$d2025-04-07 - 2025-04-09$$wGermany
000629281 245__ $$aTwo-Loop Corrections to Trilinear Higgs Couplings in Higgs BSM models
000629281 260__ $$c2025
000629281 3367_ $$033$$2EndNote$$aConference Paper
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000629281 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1750764503_4170683
000629281 520__ $$aThe precise determination of the Higgs self-couplings is an essential task for understanding electroweak symmetry breaking and probing physics beyond the Standard Model (SM). The calculation of two-loop corrections is important to provide a critical test of the perturbative stability, especially in the case of large one-loop corrections that can occur in scenarios with extended scalar sectors. Morever, they need to be taken into account for the future perspective of precisely measuring the Higgs self-couplings. In this talk, we will present our work on the leading two-loop corrections to the trilinear Higgs couplings in the two-Higgs-doublet model (THDM) and other models beyond the SM. We focus in particular on the couplings hhh, hhH , which are the most important for di-Higgs production at the (HL-)LHC. We will discuss the technical details of the calculation, in particular concerning the renormalization of the alignment limit, and briefly illustrate the phenomenological impact of our results.
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000629281 536__ $$0G:(GEPRIS)520070247$$aDFG project G:(GEPRIS)520070247 - Untersuchungen von Neue Physik mit generischen Präzisionsberechnungen (520070247)$$c520070247$$x1
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000629281 7001_ $$0P:(DE-H253)PIP1094538$$aBraathen, Johannes$$b1
000629281 7001_ $$0P:(DE-H253)PIP1112929$$aEgle, Felix$$b2
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