Speaker
Prof.
Eung Jin Chun
Description
We propose a leptogenesis scenario where the CP asymmetry is provided by the kinetic motion of the majoron in the decay and inverse decay of a right-handed neutrino which violates the lepton number by one unit. We find that successful leptogenesis can be achieved for sub-keV majoron which can be a viable dark matter candidate as well. If one considers a very strong wash-out regime requiring a huge kinetic misalignment, the right-handed neutrino mass can go down to the sub-GeV region which is sensitive to various HNL searches.
