Tripartite Neutrino Mass Matrix

Details Tripartite Neutrino Mass Matrix Tripartite Neutrino Mass Matrix

2003-08-27

arxiv.org/abs/hep-ph/0308282v1

Phys.Lett. B583 (2004) 157-162

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, no figure

Scientific paper

10.1016/j.physletb.2004.01.006

The 3 X 3 Majorana neutrino mass matrix is written as a sum of 3 terms, i.e. M_nu = M_A + M_B + M_C, where M_A is proportional to the identity matrix and M_B and M_C are invariant under different Z_3 transformations. This M_nu is very suitable for understanding atmospheric and solar neutrino oscillations, with sin^2 (2 theta_atm) and tan^2 (theta_sol) fixed at 1 and 0.5 respectively, in excellent agreement with present data. It has in fact been proposed before, but only as an ansatz. This paper uncovers its underlying symmetry, thus allowing a complete theory of leptons and quarks to be constructed.

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