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arXiv · hep-ph/0204291

See-Saw Realization of the Texture Zeros in the Neutrino Mass Matrix

A. Kageyama·S. Kaneko·N. Shimoyama·M. Tanimoto
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Abstract

We study the see-saw realization of seven textures of the neutrino mass matrix, which were presented by Frampton, Glashow and Marfatia. Two of them B_1 and B_2 are not realized in the see-saw mechanism without fine-tuning of parameters. We present some specific textures of the Dirac neutrino mass matrix and the right-handed Majorana neutrino one. In order to test these textures, we discuss the effect on the branching ratio of mu --> e gamma. We also study the U(1)_X times U(1)_{X'} flavor symmetry, in which U(1)_X is anomalous and U(1)_{X'} is non-anomolous, to reproduce texture zeros. We present examples of U(1) charges for two textures A_1 and A_2$.

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A. Kageyama, S. Kaneko, N. Shimoyama, M. Tanimoto. 2002-08-06. See-Saw Realization of the Texture Zeros in the Neutrino Mass Matrix. https://doi.org/10.1016/s0370-2693(02)01964-0

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