11–17 May 2025
Isola d'Elba
Europe/Rome timezone

Connecting Multi-Higgs production and the Electroweak Phase Transition

14 May 2025, 10:05
15m
Sala Maria Luisa

Sala Maria Luisa

Resonant HH/SH and BSM models Plenary

Speaker

Osama Karkout (Nikhef National institute for subatomic physics (NL))

Description

Exploring the Higgs sector via multi-Higgs production searches is a main goal for run-3 and high-lumi LHC. Can these searches inform us about the electroweak phase transition and matter-antimatter asymmetry?
We address this question in the context of the TRSM (Two-Real-Singlet Model), which has known benchmark points enhancing multi-Higgs production.
We update the triple-Higgs production benchmark points to include refined perturbativity bounds and explore the type of electroweak phase transition that occurs in the early universe; whether continuous or the first-order discontinuous phase transition desired for matter-antimatter asymmetry.
After presenting our work, I outline lessons on correlating the type of electroweak phase transition and the enhancement of di-Higgs or triple Higgs production, highlighting the importance of the theory's vacuum expectation value of today and the symmetries of the model.

Author

Osama Karkout (Nikhef National institute for subatomic physics (NL))

Presentation materials