LMA Solution to the Solar Neutrino Problem and a Phenomenological Charged Lepton Mass Matrix

Details LMA Solution to the Solar Neutrino Problem and a Phenomenological Charged Lepton Mass Matrix LMA Solution to the Solar Neutrino Problem and a Phenomenological Charged Lepton Mass Matrix

2002-04-27

arxiv.org/abs/hep-ph/0204317v3

Eur.Phys.J.C27:43-47,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, no figures, essential discussion about the model is added in this version

Scientific paper

10.1140/epjc/s2002-01105-3

We propose a phenomenological form of the charged lepton mass matrix, which extends the idea of ``lopsided'' mass matrix in the literature. The features of the form are that both the 2-3 and 1-3 elements of the charged lepton mass matrix are of order 1 and that the small elements have a new structure . This form leads to an interesting result that both large atmospheric and solar neutrino mixing can be accounted for by the matrix. Another interesting result of this mass matrix is that it leads to very small 1-3 mixing in the lepton sector and can suppress the branching ratio of $\mu\to e\gamma$ under the present experimental limit in the supersymmetric see-saw case.

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