Dark matter origins of neutrino masses

Abstract

We propose a simple scenario that directly connects the dark matter (DM) and neutrino mass scales. Based on an interaction between the DM particle $\chi$ and the neutrino $\nu$ of the form $\chi \chi \nu \nu /{\Lambda }^2$, the DM annihilation cross section into the neutrino is determined and a neutrino mass is radiatively induced. Using the observed neutrino mass scale and the DM relic density, the DM mass and the effective scale $\Lambda$ are found to be of the order MeV and GeV, respectively. We construct an ultraviolet-complete toy model based on the inverse seesaw mechanism which realizes this potential connection between DM and neutrino physics.

4 pages, 3 figures. V2: comments on CMB constraints corrected, main conclusions unchanged. V3: clarifications added, version accepted by PRD

References in corpus (6)

• Effects of new leptons in Electroweak Precision Data
• A Survey of Lepton Number Violation Via Effective Operators
• BBN And The CMB Constrain Neutrino Coupled Light WIMPs
• Testing MeV dark matter with neutrino detectors
• Origin of neutrino masses at the LHC: Delta L = 2 effective operators and their ultraviolet completions
• Dark Matter and Lepton Flavour Violation in a Hybrid Neutrino Mass Model

Cited by in corpus (7)

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• Dark Matter in the Type Ib Seesaw Model
• Effective Theory for Electroweak Doublet Dark Matter
• Novel modulus stabilization mechanism in higher dimensional f(R) Gravity
• Probing Dark Sector Particles Coupling to Neutrinos with Double Beta Decay
• Radiative neutrino masses: A window to new physics