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arXiv · 1709.02886

Dark matter stability and one-loop neutrino mass generation based on Peccei-Quinn symmetry

Daijiro Suematsu
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Abstract

We propose a model which is a simple extension of the KSVZ invisible axion model with an inert doublet scalar. Peccei-Quinn symmetry forbids tree-level neutrino mass generation and its remnant $Z_2$ symmetry guarantees dark matter stability. The neutrino masses are generated by one-loop effects as a result of the breaking of Peccei-Quinn symmetry through a nonrenormalizable interaction. Although the low energy effective model coincides with an original scotogenic model which contains right-handed neutrinos with large masses, it is free from the strong $CP$ problem.

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Daijiro Suematsu. 2018-01-15. Dark matter stability and one-loop neutrino mass generation based on Peccei-Quinn symmetry. https://doi.org/10.1140/epjc%2Fs10052-018-5519-4

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