Yukawaon Model with U(3)$\times$S$_3$ Family Symmetries

Details Yukawaon Model with U(3)$\times$S$_3$ Family Symmetries Yukawaon Model with U(3)$\times$S$_3$ Family Symmetries

2012-02-27

arxiv.org/abs/1202.5815v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 3 figures

Scientific paper

A new yukawaon model is investigated under a family symmetry U(3)\times S_3. In this model, all vacuum expectation values (VEVs) of the yukawaons, , are described in terms of a fundamental VEV matrix <\Phi_0> as in the previous yukawaon model, but the assignments of quantum number for fields are different from the previous ones: the fundamental yukawaon \Phi_0 is assigned to (3,3) of U(3) \times U(3), which is broken into (3,1+2) of U(3) \times S_3, although quarks and leptons are still assigned to triplets of U(3) and yukawaons Y_f are assigned to 6^* of U(3). Then, VEV relations among Yukawaons become more concise considerably than the previous yukawaon models. By adjusting parameters, we can fit not only quark mixing parameters but also lepton mixing parameters together with their mass ratios.

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