New Approach to Texture-zeros with S_3 symmetry - Flavor Symmetry and Vacuum Aligned Mass Textures -

Details New Approach to Texture-zeros with S_3 symmetry - Flavor Symmetry and Vacuum Aligned Mass Textures - New Approach to Texture-zeros with S_3 symmetry - Flavor Symmetry and Vacuum Aligned Mass Textures -

2007-03-23

arxiv.org/abs/hep-ph/0703250v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures, to appear in Proceedings of the International Workshop on Neutrino Masses and Mixings -- Toward Unified Un

Scientific paper

A texture-zeros is an approach to reduce the number of free parameters in Yukawa couplings and it is one of the most attractive ones. In our paper, we discuss the origin of zero-structure in texture-zeros by S_3 flavor symmetry approach. Some of electroweak doublet Higgs fields have vanishing vacuum expectation value(VEV) which leads to vanishing elements in quark and lepton mass matrices. Then, the structure of supersymmetric scalar potential is analyzed and Higgs fields have non-trivial S_3 charges. As a prediction of our paper, a lower bound of a MNS matrix element, U_{e3} \geq 0.04, is obtained. The suppression of flavor-changing neutral currents(FCNC) mediated by the Higgs fields is discussed and lower bounds of the Higgs masses are derived.

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