Radiative charged-lepton mass generation in multi-Higgs doublet models

Understand

We show that charged-lepton masses can be radiatively induced in multi-Higgs doublet models (NHDMs) through the renormalization group running of Yukawa couplings from high to low energies.

• Some extreme examples of electron and muon mass generation are discussed in the context of two and three Higgs doublet models.
• It is also shown that quantum corrections to the Yukawa couplings can be naturally of the same order as the tree-level values.
• We also comment on the implications of considering extensions of NHDMs in which right-handed neutrinos are added.