Radiative seesaw-type mechanism of fermion masses and non-trivial quark mixing

摘要

We propose a predictive inert two-Higgs doublet model, where the standard model (SM) symmetry is extended by (S_{3}otimes Z_{2}otimes Z_{12}) and the field content is enlarged by extra scalar fields, charged exotic fermions and two heavy right-handed Majorana neutrinos. The charged exotic fermions generate a non-trivial quark mixing and provide one-loop-level masses for the first- and second-generation charged fermions. The masses of the light active neutrinos are generated from a one-loop-level radiative seesaw mechanism. Our model successfully explains the observed SM fermion mass and mixing pattern.