Two-loop neutrino mass model with modular $S_4$ symmetry

A. E. Cárcamo Hernández, J. Echeverria-Puentes, Vishnudath K. N. +3

We propose a two-loop radiative neutrino mass model based on the modular ${\Gamma }_4\simeq S_4$ flavour symmetry supplemented by a discrete $Z_3$ symmetry. After spontaneous modular symm…