Speaker
Dr
Giorgio Arcadi
(MPIfK, Heidelberg)
Description
A compelling mechanism for leptogenesis consists into CP-violating oscillations of mass-degenerate pairs of sterile neutrinos with masses lying at the GeV scale. This kind of setup finds a natural embedding in models like the Inverse See-Saw, where the mass degeneracy of these neutrino pairs is associated to a small violation of the lepton number. We present the resulst of a systematic study based on the numerical solution of suitable Boltzmann equation. Interestingly, Inverse See-Saw models can provide also a solution to the Dark Matter puzzle. We will then discuss the impact, on Dark Matter phenomenology, of the requirement of successful generation of the baryon asymmetry of the Universe.
