ar X iv : 0 70 5 . 22 75 v 1 [ he p - ph ] 1 6 M ay 2 00 7 S 4 Flavor Symmetry Embedded into SU ( 3 ) and Lepton Masses and Mixing
نویسنده
چکیده
Under an assumption that an S4 flavor symmetry is embedded into SU(3), a lepton mass matrix model is investigated. A Frogatt-Nielsen type model is assumed, and the flavor structures of the masses and mixing are caused by VEVs of SU(2)L-singlet scalars φu and φd which are nonets (8+1) of the SU(3) flavor symmetry, and which are broken into 2+3+3 and 1 of S4. If we require the invariance under the transformation (φ , φ) → (−φ(8),+φ(1)) for the superpotential of the nonet field φ, the model leads to a beautiful relation for the charged lepton masses. The observed tribimaximal neutrino mixing is understood by assuming two SU(3) singlet right-handed neutrinos ν (±) R and an SU(3) triplet scalar χ.
منابع مشابه
ar X iv : 0 70 5 . 22 75 v 3 [ he p - ph ] 2 7 Ju n 20 07 S 4 Flavor Symmetry Embedded into SU ( 3 ) and Lepton Masses and Mixing
Based on the assumption that an S4 flavor symmetry is embedded into SU(3), a lepton mass matrix model is investigated. A Froggatt-Nielsen type model is assumed, and the flavor structures of the masses and mixing are caused by VEVs of SU(2)L-singlet scalars φu and φd which are nonets (8+1) of the SU(3) flavor symmetry, and which are broken into 2+3+3 and 1 of S4. If we require the invariance und...
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