Majorogenesis

Nov 13, 2023, 2:00 PM
30m
The Suites Hotel, Jeju Island, Korea

The Suites Hotel, Jeju Island, Korea

67 Jungmungwangwang-ro 72beon-gil, 특별자치도, Seogwipo-si, Jeju-do

Speaker

Eung Jin Chun (Korea Institute for Advanced Study)

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.

Primary author

Eung Jin Chun (Korea Institute for Advanced Study)

Presentation materials