Cosmological singlet diagnostics of neutrinophilic dark matter

Abstract

The standard model of particle physics is extended by adding a purely neutrinophilic dark sector. It is shown that theories which accommodate standard model neutrinos as dark radiation are resurrected. Sterile neutrinos bridge the visible and the dark sector and can keep their mutual interactions effective even after the epoch of big bang nucleosythesis. This prolonged contact between dark matter and standard model neutrinos solves the well-known small-scale structure problems of the cosmological standard model. The dark sector presented in this work satisfies all experimental and observational constraints from particle physics and cosmology.

11 pages, 5 figures, corresponds to published version

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Cited by in corpus (6)

• The Neutrino Puzzle: Anomalies, Interactions, and Cosmological Tensions
• Neutrino Portals to Dark Matter
• $\Lambda$CDM or self-interacting neutrinos? - how CMB data can tell the two models apart
• Small-scale structure from neutron dark decay
• Secluded Dark Matter in light of the Cherenkov Telescope Array (CTA)
• Small-scale structure from charged leptophilia