Primordial Black Holes and Leptogenesis: An unexpected interplay

Mayo 23, 2022
De 3:00pm hasta 4:00pm

IFT Seminar Room/Red Room

Theoretical Physics, general interest
Yuber F. Perez-Gonzalez
Durham U., IPPP

IFT Seminar Room/Red Room


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.