OKC BSM meeting
Thursday 9 November 2023 -
10:00
Monday 6 November 2023
Tuesday 7 November 2023
Wednesday 8 November 2023
Thursday 9 November 2023
10:00
First-order phase transitions in Twin Higgs models
-
Ignacy Nałęcz
(
Warzaw
)
First-order phase transitions in Twin Higgs models
Ignacy Nałęcz
(
Warzaw
)
10:00 - 10:40
Room: A5:1003
Twin Higgs (TH) is the simplest model that incorporates a mirror matter sector. It naturally achieves a stable electroweak scale and matches the 125 GeV Standard Model (SM) Higgs mass without introducing coloured partners in LHC reach. In the context of TH, the SM-like Higgs boson emerges as a pseudo-Nambu-Goldstone boson of the approximate global symmetry group. In my presentation, I will discuss the scalar phase transition in the Twin Higgs model and demonstrate that, under specific conditions, it can be strongly first-order. This transition may lead to the emission of a stochastic gravitational wave background and provide a framework for explaining the observed baryon asymmetry in the universe.