Spontaneous Family Symmetry Breaking And Fermion Mixing

Details Spontaneous Family Symmetry Breaking And Fermion Mixing Spontaneous Family Symmetry Breaking And Fermion Mixing

1994-12-03

arxiv.org/abs/hep-ph/9412223v1

Phys.Lett.B355:518-522,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 Pages, latex, 1 figure not included-upon request

Scientific paper

10.1016/0370-2693(95)00742-4

We propose a theory to describe fermion mixing. The theory respects the maximal abelian family symmetries which are spontaneously broken down at a large scale. We find that quark mixing can be well described in this theory. Some concrete models are constructed. The crucial point for model building is to introduce some new particles which are SU(2) gauge singlets and carry -1/3 electric charge. The approximate family symmetries in our low energy effective theory are naturally achieved. Some interesting phenomena in the effective theory, especially with two Higgs-doublets, are discussed.

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