Leptonic CP Violation And Leptogenesis

摘要

We investigate the extension of MSSM by two mass-degenerate (at tree level) right handed neutrinos. Addressing neutrino masses and leptogenesis. we show that the lepton asymmetry is induced at 1-loop level. We consider concrete neutrino model. which enables to predict the CP violating δ phase and relate it to the cosmological CP asymmetry. The needed amount of the baryon asymmetry is generated via the resonant leptogenesis.