Speaker: 
Shaaban Khalil
Speaker affiliation: 
Zewail City of Science and Technology, Egypt
Date: 
Tuesday, March 5, 2019 - 12:30
Room: 
Seminar room (46/5081)
Title: 
Gauged B-L Leptogenesis
Abstract: 

We propose a new leptogenesis scenario in a gauged B−L model with supersymmetry at the TeV energy scale. Instead of relying on the very small Yukawa couplings of the singlet neutrinos Nc to generate the observed baryon asymmetry of the Universe, which requires a very large resonance enhancement, their B−L gauge interactions are invoked. Successful leptogenesis is then possible if a particular scalar bilinear \tilde{N}^c \tilde{N}^c term is disallowed. Slides can be found here.