A renormalizable fermion mass model with the double tetrahedral group

Understand

We present a renormalizable model for fermion masses based solely on the double tetrahedral group T'.

• It does not include right handed neutrinos and majorana neutrino masses are generated radiatively.
• The scalar sector of the model involves three SU(2) doublets and a set of lepton number violating (charged) scalars needed to give mass to the neutrinos.
• In the quark sector the model leads to a Fritzsch type scenario that is consistent with all the existing data.