Quark and Lepton Masses from a {\boldmath $U(1)\times Z_2$} Flavor Symmetry

Abstract

We show that solutions for the masses and mixings of the quarks and leptons based on a $U(1)\times Z_2$ horizontal symmetry are possible. The seesaw mechanism is shown to work consistently in the presence of the discrete symmetry. The discrete symmetry results in the phenomenologically useful suppressions of elements of the Yukawa matrices. The quark and lepton masses, the CKM mixing angles, and the neutrino mixing angles are accomodated at the order of magnitude level.

16 pages

References in corpus (4)

• Neutrino masses from U(1) symmetries and the Super-Kamiokande data
• Neutrino Masses and Mixing with Non-Anomalous Abelian Flavor Symmetries
• Abelian family symmetries and Leptogenesis
• Quark-Lepton Mass Matrices with $U(1)\times Z_2\times Z_2^{\prime }$ Flavor Symmetry

Cited by in corpus (10)

• Large Mixing Angle MSW Solution in S_3 Flavor Symmetry
• Anomalous U(1) symmetry and lepton flavor violation
• Anomaly-Free Flavor Symmetry and Neutrino Anarchy
• Discrete Flavor Symmetries and Mass Matrix Textures
• Minimal gauge-Higgs unification with a flavour symmetry
• Bilarge Neutrino Mixing and Abelian Flavor Symmetry
• Large Mixing Angle MSW Solution in U(1) Flavor Symmetry
• Fermion Mass Hierarchy and Electric Dipole Moments
• Masses and Mixings in a Grand Unified Toy Model
• Discrete symmetries and neutrino masses