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arXiv · 0709.3767

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

Chien-Yi Chen·L. Wolfenstein
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Abstract

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 $μ-τ$ symmetry leads to an approximate tri-bimaximal form. Experimental consequences are discussed.

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Chien-Yi Chen, L. Wolfenstein. 2007-09-24. Consequences of Approximate $S_3$ Symmetry of the Neutrino Mass Matrix. https://doi.org/10.1103/physrevd.77.093009

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