U(2) Flavor Physics without U(2) Symmetry

Details U(2) Flavor Physics without U(2) Symmetry U(2) Flavor Physics without U(2) Symmetry

1999-10-19

arxiv.org/abs/hep-ph/9910392v2

Phys.Lett. B474 (2000) 170-176

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages RevTeX, 1 eps figure. A few typos corrected

Scientific paper

10.1016/S0370-2693(99)01497-5

We present a model of fermion masses based on a minimal, non-Abelian discrete symmetry that reproduces the Yukawa matrices usually associated with U(2) theories of flavor. Mass and mixing angle relations that follow from the simple form of the quark and charged lepton Yukawa textures are therefore common to both theories. We show that the differing representation structure of our horizontal symmetry allows for new solutions to the solar and atmospheric neutrino problems that do not involve modification of the original charged fermion Yukawa textures, or the introduction of sterile neutrinos.

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