Radiatively Generated Fermion Masses In $SU(4)\times SU(2)_L\times SU(2)_R$

Details Radiatively Generated Fermion Masses In $SU(4)\times SU(2)_L\times SU(2)_R$ Radiatively Generated Fermion Masses In $SU(4)\times SU(2)_L\times SU(2)_R$

1995-02-03

arxiv.org/abs/hep-ph/9502222v2

Phys.Rev. D53 (1996) 283-294

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, Latex. 3 figures submitted as a uuencoded file. One figure contributing to neutrino mass added changing neutrino mas

Scientific paper

10.1103/PhysRevD.53.283

We propose a model based on the gauge group $SU(4)\times SU(2)_L\times SU(2)_R$ where the Dirac masses of all the known fermions are generated as one-loop radiative corrections. We are able to generate realistic quark and lepton masses and mixings without a large hierarchy of Yukawa couplings or extra symmetries. The neutrino masses, which are see-saw suppressed, lie in the mass range favored to solve the solar neutrino problem. The importance of threshold corrections to tree-level mass relations in certain non-supersymmetric GUTs is demonstrated.

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