Three-Neutrino Mass Matrices with Two Texture Zeros

Details Three-Neutrino Mass Matrices with Two Texture Zeros Three-Neutrino Mass Matrices with Two Texture Zeros

2002-09-04

arxiv.org/abs/hep-ph/0209035v2

Mod.Phys.Lett. A18 (2003) 1355-1366

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, needs attached file tcilatex.tex

Scientific paper

10.1142/S0217732303011071

Out of the fifteen 3 x 3 neutrino mass matrices with two texture zeros seven are compatible with the neutrino oscillation data. While 2 of them correspond to hierarchical neutrino masses and 1 to an inverted hierarchy, the remaining 4 correspond to degenerate masses. Moreover only the first 3 of the 7 mass matrices are compatible with the maximal mixing angle of atmospheric neutrino and hence favoured by data. We give compact expressions for mass matrices in terms of mass eigenvalues and study phenomenological implications for the 7 cases. Similarity of the textures of the neutrino, charged-lepton mass matrices with those of quark mass matrices is also discussed.

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