Broken SU(3) Flavor Symmetry and Tribimaximal Neutrino Mixing
arXiv:0707.0899
Abstract
Recent work on a lepton mass matrix model based on an SU(3) flavor symmetry which is broken into S_4 is reviewed. The flavor structures of the masses and mixing are caused by VEVs of SU(2)_L-singlet scalars ϕwhich are nonets ({\bf 8}+{\bf 1}) of the SU(3) flavor symmetry, and which are broken into {\bf 2}+{\bf 3}+{\bf 3}' and {\bf 1} of S_4. If we require the invariance under the transformation (ϕ^{(8)},ϕ^{(1)}) \to (-ϕ^{(8)},+ϕ^{(1)}) for the superpotential of the nonet field ϕ^{(8+1)}, 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^{(\pm)} and an SU(3) triplet scalar χ.
arXiv comment11 pages, no figure, Contributed paper to Lepton-Photon 2007
Cited by in corpus (8)
- A SUSY SU(5) Grand Unified Model of Tri-Bimaximal Mixing from A4
- Lepton Flavour Violation in Models with A4 Flavour Symmetry
- Lepton Flavour Violation in a Supersymmetric Model with A4 Flavour Symmetry
- Flavor Symmetry Breaking and Vacuum Alignment on Orbifolds
- Tri-bimaximal Mixing from Cascades
- Theory of the Neutrino Mass
- GIMPs from Extra Dimensions
- Cascade Hierarchy in SUSY SU(5) GUT