# A model of radiative neutrino mass: with or without dark matter

@article{Ahriche2014AMO, title={A model of radiative neutrino mass: with or without dark matter}, author={Amine Ahriche and Kristian L. McDonald and Salah Nasri}, journal={Journal of High Energy Physics}, year={2014}, volume={2014}, pages={1-19} }

A bstractWe present a three-loop model of neutrino mass whose most-general Lagrangian possesses a softly-broken accidental Z2 symmetry. In the limit that a single parameter vanishes, λ →0, the Z2 symmetry becomes exact and the model contains a stable dark-matter candidate. However, even for finite λ ≪1, long-lived dark matter is possible, giving a unified solution to the neutrino mass and dark matter problems that does not invoke a new symmetry. Taken purely as a neutrino mass model, the new…

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