Regular Article - Theoretical Physics
S3 symmetry and neutrino masses and mixings
Department of Physics, University of Shizuoka, 52-1 Yada, Shizuoka, 422-8526, Japan
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Revised: 30 January 2007
Published online: 20 March 2007
Based on the universal seesaw mass matrix model with the three scalars φi, and by assuming S3 flavor symmetry for the Yukawa interactions, the lepton masses and mixings are investigated systematically. In order to understand the observed neutrino mixing, the charged leptons (e,μ,τ) are regarded as the three objects (e1,e2,e3) of S3, while the neutrino mass eigenstates are regarded as the irreducible representation (νη,νσ,νπ) of S3, where (νπ,νη) and νσ are a doublet and a singlet, respectively, which are composed of the three objects (ν1,ν2,ν3) of S3.
© Springer-Verlag Berlin Heidelberg, 2007