Solar Neutrinos as a Probe of Dark Matter-Neutrino Interactions

Abstract

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. We point out that within this framework active neutrinos acquire an effective coupling to DM that manifests itself as a new matter potential in the propagation within a medium of asymmetric DM. Assuming that at least a small fraction of asymmetric DM has been captured by the Sun, we show that a sizable region of the parameter space of these scenarios can be probed by solar neutrino experiments, especially in the regime of small couplings and light mediators where all other probes become inefficient. In the latter regime these scenarios behave as familiar $3+1$ models in all channels except for solar data, where a Solar Dark MSW effect takes place. Solar Dark MSW is characterized by modifications of the most energetic ${}^8$B and CNO neutrinos, whereas the other fluxes remain largely unaffected.

19 pages, 7 figures

References in corpus (12)

• Too big to fail? The puzzling darkness of massive Milky Way subhaloes
• Asymmetric Dark Matter
• Dark Matter and Dark Radiation
• Solar Neutrino Measurements in Super-Kamiokande-IV
• Is dark matter with long-range interactions a solution to all small-scale problems of ΛCDM cosmology?
• Make Dark Matter Charged Again
• MeV Dark Matter and Small Scale Structure
• Collisional production of sterile neutrinos via secret interactions and cosmological implications
• Light WIMPs in the Sun: Constraints from Helioseismology
• Detecting Asymmetric Dark Matter in the Sun with Neutrinos
• The Not-So-Sterile 4th Neutrino: Constraints on New Gauge Interactions from Neutrino Oscillation Experiments
• Light sterile neutrinos from a late phase transition

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