PREPRINT
149F8850-8A51-41DC-B5B8-B71F3AE3F273

Ultra-relativistic bubbles from the simplest Higgs portal and their cosmological consequences

Aleksandr Azatov, Giulio Barni, Sabyasachi Chakraborty, Miguel Vanvlasselaer, Wen Yin
arXiv:2207.02230

Submitted on 5 July 2022

Abstract

We analyze the phase transitions in the minimal extension of the SM with a real singlet scalar field. The novelty of our study is that we identify and analyze in details the region of parameter space where the first order phase transition can occur and in particular when the bubbles with true vacuum can reach relativistic velocities. This region is interesting since it can lead to the new recently discussed baryogenesis and Dark Matter production mechanisms. We fully analyze different models for the production of Dark Matter and baryogenesis as well as the possibilities of discovery at the current and future experiments.

Preprint

Comment: 30 pages + appendix, 13 figures, 4 tables, comments and feedback welcome

Subjects: High Energy Physics - Phenomenology; Astrophysics - Cosmology and Nongalactic Astrophysics

URL: https://arxiv.org/abs/2207.02230