Minimal Radiative Neutrino Masses

Abstract

We conduct a systematic search for neutrino mass models which only radiatively produce the dimension-5 Weinberg operator. We thereby do not allow for additional symmetries beyond the Standard Model gauge symmetry and we restrict ourselves to minimal models. We also include stable fractionally charged and coloured particles in our search. Additionally, we proof that there is a unique model with three new fermionic representations where no new scalars are required to generate neutrino masses at loop level. This model further has a potential dark matter candidate and introduces a general mechanism for loop-suppression of the neutrino mass via a fermionic ladder

arXiv commentfinal version as published in JHEP

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Cited by in corpus (15)

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• Exploding operators for Majorana neutrino masses and beyond
• Naturally small Yukawa couplings from trans-Planckian asymptotic safety
• Systematic classification of two loop d = 4 Dirac neutrino mass models and the Diracness-dark matter stability connection
• Probing New Physics at Future Tau Neutrino Telescopes
• Scotogenic S3 symmetric generation of realistic neutrino mixing
• Radiative neutrino masses and successful $SU(5)$ unification
• The Singly-Charged Scalar Singlet as the Origin of Neutrino Masses
• Naturally small neutrino mass with asymptotic safety and gravitational-wave signatures
• Absolute neutrino mass scale and dark matter stability from flavour symmetry
• Loop-enhanced rate of neutrinoless double beta decay
• First constraints on general neutrino interactions based on KATRIN data
• Type-3/2 Seesaw Mechanism
• FIMP DM in the Extended Hyperchargeless Higgs Triplet Model