Baryogenesis from a lepton asymmetric universe

Marion Flanz, Emmanuel A. Paschos, Utpal Sarkar
1995 Physics Letters B  
We demonstrate that CP-violation in the Majorana mass matrices of the heavy neutrinos can generate a CP-asymmetric universe. The subsequent decay of the Majorana particles generates a lepton number asymmetry. During the electroweak phase transition the lepton asymmetry is converted into a baryon asymmetry, which survives down to this time.
doi:10.1016/0370-2693(94)01555-q fatcat:i5g6cevp6zgohoonpdgz6ddqfa