Primordial Black Holes and Leptogenesis: An unexpected interplay

May 23, 2022
3:00pm to 4:00pm

IFT Seminar Room/Red Room

Theoretical Physics, general interest
Speaker: 
Yuber F. Perez-Gonzalez
Institution: 
Durham U., IPPP
Location&Place: 

IFT Seminar Room/Red Room

Abstract: 

Black Hole evaporation offers a unique method of particle production, unlike any other interaction process. In the Early Universe, such an evaporation can affect the baryon asymmetry produced via leptogenesis since heavy right-handed neutrinos can be emitted independently of the properties of the primordial plasma. However, there is also a large amount of entropy injected, which could dilute the generated asymmetry. We will explore in detail this interplay between Primordial Black Holes and Leptogenesis, determining the regions of the parameter space where the evaporation increases or erases the asymmetry.