Opening up New Parameter Space for Sterile Neutrino Dark Matter

P. S. Bhupal Dev, Bhaskar Dutta, Srubabati Goswami +2

Sterile neutrinos are compelling dark matter (DM) candidates, yet the minimal production mechanism solely based on active ($\hat{I}{½}_a$)-sterile ($\hat{I}{½}_s$) oscillations is excluded by astr…