23–25 Jan 2023
University of Pisa
Europe/Rome timezone

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

25 Jan 2023, 15:35
25m
Aula Magna 'Fratelli Pontecorvo' (University of Pisa)

Aula Magna 'Fratelli Pontecorvo'

University of Pisa

Polo Fibonacci Building E Largo B. Pontecorvo 3 56127 Pisa
Talk

Speaker

Giulio Barni (SISSA)

Description

We analyze 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 detail 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.

Faculty position

3rd year PhD student

Topic Field Particle Physics

Primary authors

Giulio Barni (SISSA) ALEKSANDR AZATOV (Istituto Nazionale di Fisica Nucleare) Mr Miguel Vanvalsselaer (VUB, Bruxelles) Mr Sabyasachi Chakraborty (Indian Institute of Technology, Kanpur) Mr Wen Yin (IPMU, Tokyo)

Presentation materials