Orateur
Rémi Faure
(Institut de Physique Théorique (CEA Saclay, Paris))
Description
Leptogenesis is an explanation for the asymmetry between matter and antimatter present in our Universe. One of its popular realisation involves new particles, right-handed neutrinos, that allow lepton-number violating processes and C and CP violation. In order to generate a final asymmetry, we also need them to be out-of-equilibrium. In our scenario, this departure from equilibrium is provided by a phase-transition that generates the mass of the right-handed neutrinos, which can extend the successful parameter space available.
