摘要：A new S4 flavor model based on gauge symmetry responsible for fermion masses and mixings is constructed. The neutrinos get small
masses from only an antisextet of SU(3)L which is in a doublet under S4. In this
work, we assume the VEVs of the antisextet differ from each other under S4 and the
difference of these VEVs is regarded as a small perturbation, and then the model can fit the experimental data on neutrino masses and mixings. Our results show
that the neutrino masses are naturally small and a deviation from the tribimaximal
neutrino mixing form can be realized. The quark masses and mixing matrix are also
discussed. The number of required Higgs multiplets is less and the scalar potential
of the model is simpler than those of the model based on S3 and our previous S4 model. The assignation of VEVs to antisextet leads to the mixing of the new gauge bosons and those in the standard model. The mixing in the charged gauge bosons
as well as the neutral gauge bosons is considered.
