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Broken Flavor 2 <-> 3 Symmetry and phenomenological approach for universal quark and lepton mass matrices
A phenomenological approach for the universal mass matrix model with a broken
flavor 2 3 symmetry is explored by introducing the 2 3 antisymmetric
parts of mass matrices for quarks and charged leptons . We present explicit
texture components of the matrices, which are consistent with all the neutrino
oscillation experiments and quark mixing data. The mass matrices have a common
structure for quarks and leptons, while the large lepton mixings and the small
quark mixings are derived with no fine tuning due to the difference of the
phase factors. The model predicts a value, 2.4 x 10^{-3}, for the lepton mixing
matrix element square |U_{13}|^2, and also predict =(0.89-1.4) x 10^{-4}
eV for the averaged neutrino mass which appears in the neutrinoless double beta
decay.Comment: 18 page