Speaker
Digesh Raut
(St. Mary's College of Maryland)
Description
Type-I seesaw scenario is arguably the simplest scenario to generate the observed neutrino oscillation data and the observed baryon asymmetry in the universe via leptogenesis. Based on the Casas–Ibarra general parametrization, we derive analytic expressions for the CP asymmetry parameter in the leptogenesis with two and three generations of right-handed Majorana neutrinos, reproducing the neutrino oscillation data. We examine both thermal and non-thermal leptogenesis scenarios to obtain bounds on Majorana neutrino masses for successful leptogenesis.
Authors
Digesh Raut
(St. Mary's College of Maryland)
Nobuchika Okada
