Informal Pizza Seminar

Supersymmetric Dirac Leptogenesis and Neutrino Phenomenology

Manuel Toharia

University of Michigan

In Dirac Leptogenesis, Majorana mass terms are forbidden and the smallness of Dirac neutrino masses is linked to new heavy vector-like leptons. The decays of these heavy leptons will produce a net baryon number, via sphalerons. Even though B-L=0, the sphaleron wash-out is avoided because the Lepton number stored in the right-handed neutrinos will not equilibrate with the `left-handed' Lepton number until well after sphalerons turn off. We write and numerically solve the Boltzmann equations and attempt to link Leptogenesis to neutrino phenomenology.