Ponente
Descripción
Radiative neutrino mass models represent a vast landscape of possibilities for very exotic beyond Standard Model physics. In this talk, we will explore the idea of non-standard thermal histories in the Zee-Babu neutrino mass generation model and specifically consider the possibility of hypercharge non-restoration in the early Universe. We will find that careful treatment of finite-temperature perturbation theory is crucial for mapping out the parameter space of phenomenological interest in such scenarios. The highlight of the talk will be a novel baryon asymmetry generating mechanism which is driven by the high-temperature hypercharge-breaking phase and the specific ingredients generically found in radiative neutrino mass models.
Abstract
Radiative neutrino mass models represent a vast landscape of possibilities for very exotic beyond Standard Model physics. In this talk, we will explore the idea non-standard thermal histories in the Zee-Babu neutrino mass generation model and specifically consider the possibility of hypercharge non-restoration in the early Universe. We will find that careful treatment of finite-temperature perturbation theory is crucial for mapping out the parameter space of phenomenological interest in such scenarios. The highlight of the talk will be a novel baryon asymmetry generating mechanism which is driven by the high-temperature hypercharge-breaking phase and the specific ingredients generically found in radiative neutrino mass models.
