Neutrino masses and mixing from milli-charged dark matter

Abstract

We propose a simple extension to the Standard Model, wherein neutrinos naturally attain small Majorana masses through a one-loop radiative mechanism featuring particles within the loops characterized by milli-charges. Unlike the conventional scotogenic model, our approach avoids imposing a discrete symmetry or expanding the gauge sector. The minuscule electric charges ensure the stability of the lightest particle within the loop as a viable dark matter candidate. Our investigation systematically scrutinizes the far-reaching phenomenological implications arising from these minuscule charges.

9 pages + references, 7 figures

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Cited by in corpus (3)

• Anapole moment of neutrinos and radioactive sources near liquid xenon detectors
• Searching for MeV-mass neutrinophilic Dark Matter with Large Scale Dark Matter Detectors
• Freeze-in Production of Non-Abelian Millicharged Vector Dark Matter