## A three-loop neutrino model with global $$\operatorname{U}(1)$$ symmetry.(English)Zbl 1328.81237

Summary: We study a three-loop induced neutrino model with a global $$\operatorname{U}(1)$$ symmetry at TeV scale, in which we naturally accommodate a bosonic dark matter candidate. We discuss the allowed regions of masses and quartic couplings for charged scalar bosons as well as the dark matter mass on the analogy of the original Zee-Babu model, and show the difference between them. We also discuss that the possibility of the collider searches in a future like-sign electron liner collider could be promising.

### MSC:

 81V15 Weak interaction in quantum theory 81T18 Feynman diagrams 83F05 Relativistic cosmology

Zee-Babu model

FeynRules
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