Speaker
Aaroodd UR
Description
Sterile neutrinos are compelling dark matter candidates, yet the minimal Dodelson-Widrow (DW) production mechanism is excluded by astrophysical observations. We propose a scenario where heavy scalar-mediated non-standard interactions (NSI) between active and sterile neutrinos not only alter the DW mechanism but also generate new production channels, such as $\nu_a \nu_a \to \nu_s \nu_s$. This framework enables efficient sterile neutrino production at smaller mixing angles and opens new viable regions of parameter space.
Authors
Aaroodd UR
Bhupal Dev
(Washington University in St. Louis)
Prof.
Bhaskar Dutta
Srubabati Goswami
(Physical Research Laboraotory)
Jianrong Tang
(Washington University in St. Louis)
