Implications of texture 4 zero lepton mass matrices for U_{e3}

Details Implications of texture 4 zero lepton mass matrices for U_{e3} Implications of texture 4 zero lepton mass matrices for U_{e3}

2002-03-12

arxiv.org/abs/hep-ph/0203109v1

Phys.Rev. D65 (2002) 093016

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, LaTeX

Scientific paper

10.1103/PhysRevD.65.093016

Lepton mass matrices similar to texture 4 zero quark mass matrices, known to be quite successful in explaining the CKM phenomenology, have been considered for finding the mixing matrix element U_{e3} (\equiv s_{13}) respecting the CHOOZ constraint, with s_{12} and \Delta m_{12}^2 constrained by SNP and s_{23} and \Delta m_{23}^2 constrained by ANP. Taking charged lepton mass matrix M_l to be diagonal, we find that the ranges of s_{13} corresponding to different SNP solutions very well include the corresponding values of s_{13} found by Akhmedov et al. by considering neutrino mass matrix M_{\nu} with no texture zeros. Considering M_l and M_{\nu} both to be real and non-diagonal, s_{13} ranges for the four SNP solutions come out to be: \sim 0-0.19 (LMA), 0.038-0.093 (SMA), 0.042-0.095 (LOW), 0.038-0.096 (VO) which remain of the same order when M_l and M_{\nu} are considered to be complex and non-diagonal.

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