Suppressing Flavor Anarchy

Details Suppressing Flavor Anarchy Suppressing Flavor Anarchy

2000-06-21

arxiv.org/abs/hep-ph/0006251v3

JHEP 0009 (2000) 030

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, 1 figure, minor change

Scientific paper

10.1088/1126-6708/2000/09/030

We present a new mechanism, which does not require any flavor symmetry, to explain the small Yukawa couplings and CKM mixing angles. The Yukawa matrices are assumed to be random at short distances and the hierarchical structure is generated in the infrared by renormalization group flow. The generic qualitative predictions of this mechanism are in good agreement with observation. We give several simple examples in supersymmetric theories. We show that our mechanism can also ameliorate the supersymmetric flavor problem, and make predictions for the superpartner mass spectrum. The mechanism is fully consistent with grand unification, and in SU(5)-based models of neutrino mass, predicts a large mixing angle for muon neutrino to tau neutrino oscillations.

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