BARYOGENESIS THROUGH MIXING OF HEAVY MAJORANA NEUTRINOS

A mechanism is presented in which the mixing of right-handed heavy Maj orana neutrinos creates a CP-asymmetric universe. When these Majorana neutrinos subsequently decay more leptons than anti leptons are produc ed. Due to a resonance phenomenon the lepton asymmetry created by this new mechanism can exceed by a few orders of magnitude any lepton asym metry originating from direct decays. The asymmetry is finally convert ed into a baryon asymmetry during the electroweak phase transition.