Higgs Multiplets of the Quark-Lepton Family Group
arXiv:1105.1399 · doi:10.1103/PhysRevD.84.035021
Abstract
It is shown that realistic models can be constructed in which the Standard Model Higgs field is in a non-trivial multiplet of a non-abelian family group of the quarks and leptons. It is shown that the observed quark and lepton masses and mixing angles can be fit, while the coefficients of flavor-changing four-fermion operators mediated by the extra Higgs doublets are determined in terms of only a few unknown parameters.