Consequences of Approximate $S_3$ Symmetry of the Neutrino Mass Matrix

Details Consequences of Approximate $S_3$ Symmetry of the Neutrino Mass Matrix Consequences of Approximate $S_3$ Symmetry of the Neutrino Mass Matrix

2007-09-24

arxiv.org/abs/0709.3767v1

Phys.Rev.D77:093009,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures, 1 table, RevTex

Scientific paper

10.1103/PhysRevD.77.093009

Assuming that the neutrino mass matrix is dominated by a term with the
permutation symmetry $S_{\scriptscriptstyle 3}$ it is possible to explain
neutrino data only if the masses are quasi-degenerate. A sub-dominant term with
an approximate $\mu -\tau$ symmetry leads to an approximate tri-bimaximal form.
Experimental consequences are discussed.

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