4 papers
Leptogenesis and neutrino mass with one right-handed neutrino and Higgs inflaton
Disha Bandyopadhyay, Debasish Borah, Suruj Jyoti Das +1
We propose a novel and minimal setup where the observed baryon asymmetry of the Universe and neutrino oscillation data can be satisfied with only one right-handed neutrino (RHN) an…
Radiative Seesaw Model with Baryon Number Violation and Upper Limit on Neutron-anti-Neutron Transition Time
Rabindra N. Mohapatra, Nobuchika Okada
The minimal scotogenic model where small neutrino masses arise via radiative seesaw, is known to provide a unified framework for neutrino mass and origin of matter via leptogenesis…
Possible origin of the KM3-230213A neutrino event from dark matter decay
Debasish Borah, Nayan Das, Nobuchika Okada +1
We study the possibility of the highest energy neutrino event with 220 PeV energy, detected recently by the KM3NeT experiment to be originating from heavy dark matter (DM) decay. C…
Matter-Dark Matter Coincidence and Mirror World
Rabindra N. Mohapatra, Nobuchika Okada
Why matter and dark matter contents of the universe are of the same order of magnitude, is one of the puzzles of modern cosmology. At the face of it, this would seem to point towar…