I will describe theoretical frameworks in which the small active neutrino masses are generated radiatively. These theories include two- and three-loop realizations of the inverse seesaw mechanism, as well as a hybrid model where the active neutrino masses arise at two loops from an interplay between the linear and inverse seesaw mechanisms. In these constructions, preserved discrete symmetries enforce the radiative nature of the seesaw mechanisms and simultaneously ensure the stability of the dark matter candidate. I will then discuss their key phenomenological consequences, with a primary focus on predictions for charged lepton flavor violation. The connection to dark matter will also be addressed, with a detailed analysis for the most economical model and qualitative discussion for the others. For one specific model, I will also discuss on the prospects for leptogenesis.

Link to Zoom Registration:
https://zoom.us/meeting/register/qzKmp4pERbimx3g-GK73UQ