Speaker
Dr
Amit Dutta Banik
(Indian Statistical Institute, Kolkata)
Description
We discuss how a nonstandard multiple scalar field cosmology can change the thermal history of the universe, affecting minimal high scale leptogenesis. The produced lepton asymmetry, due to the decays of heavy Majorana right-handed neutrinos responsible for generating Standard Model neutrino masses via the type-I seesaw, is affected as well.