Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-02-16
Phys.Rev. D58 (1998) 035003
Physics
High Energy Physics
High Energy Physics - Phenomenology
26 pages
Scientific paper
10.1103/PhysRevD.58.035003
We present a supersymmetric standard model with three gauged Abelian symmetries, of a type commonly found in superstrings. One is anomalous, the other two are $E_6$ family symmetries. It has a vacuum in which only these symmetries are broken by stringy effects. It reproduces all observed quark and charged lepton Yukawa hierarchies, and the value of the Weinberg angle. It predicts three massive neutrinos, with mixing that can explain both the small angle MSW effect, and the atmospheric neutrino anomaly. The Cabibbo angle is expressed in terms of the gauge couplings at unification. It conserves R-parity, and proton decay is close to experimental bounds.
Irges Nikolaos
Lavignac Stephane
Ramond Pierre
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