Solar Neutrinos as a Probe of Dark Matter-Neutrino Interactions

Understand

Sterile neutrinos at the eV scale have long been studied in the context of anomalies in short baseline neutrino experiments.

• Their cosmology can be made compatible with our understanding of the early Universe provided the sterile neutrino sector enjoys a nontrivial dynamics with exotic interactions, possibly providing a link to the Dark Matter (DM) puzzle.
• Interactions between DM and neutrinos have also been proposed to address the long-standing "missing satellites" problem in the field of large scale structure formation.
• Motivated by these considerations, in this paper we discuss realistic scenarios with light steriles coupled to DM.