Phenomenology of a Neutrino-DM Coupling: The Scalar Case

Abstract

Dark matter (DM) and neutrinos are the two most compelling pieces of evidence of new physics beyond the Standard Model of Particle Physics but these are often treated as belonging to two different sectors. Yet DM-neutrino interactions are known to have cosmological consequences. Here, we study the scenario of a scalar DM candidate coupled to left-handed neutrinos via a Dirac mediator. We determine the mass of a DM candidate that yields the right DM relic abundance in a thermal scenario and it is consistent with large-scale structure formation. In order to satisfy both constraints, a complex DM candidate should have a mass larger than $8.14$ keV while the mass of a real DM candidate should be above $18.1$ eV, independently of the value of the DM-neutrino coupling.

arXiv commentPoster presented at NuPhys2016 (London, 12-14 December 2016). 4 pages, LaTeX, 2 png figures

Cited by in corpus (7)

• Emergence of the mass discrepancy-acceleration relation from dark matter-baryon interactions
• Dark Matter-Neutrino Interaction in Light of Collider and Neutrino Telescope Data
• Neutrino Interactions in the Late Universe
• Baryon-Interacting Dark Matter: heating dark matter and the emergence of galaxy scaling relations
• Neutrino damping in a fermion and scalar background
• Neutrino effective potential in a fermion and scalar background
• Cosmological Implications of a Neutrino Mass Detection