Theory Seminar (U. Toyama)
An extended Higgs model for neutrino mass, dark matter, and baryon asymmetry
by
→
Asia/Tokyo
A228 (Faculty of Science, U. Toyama)
A228
Faculty of Science, U. Toyama
Description
Aoki-Kanemura-Seto model (AKS model) is a new physics model that can explain neutrino mass, dark matter and baryon asymmetry of the universe, but the baryon number has not yet been evaluated in the original model. The CP-violating phase in the Higgs potential is important to explain the observed baryon asymmetry in the electroweak baryogenesis scenario. However, such a phase is severely constrained by the measurements of the electron electric dipole moment (EDM) . In this talk, we show that the electron EDM can be suppressed by interference between the phase in the Higgs sector and the dark sector. We discuss the possibility of explaining three phenomena.