Abelian Flavour Symmetries in Supersymmetric Models

Abstract

We propose a theory of flavour based on abelian horizontal gauge symmetries and modular invariances. We construct explicit supergravity models where the scale of the horizontal $U(1)$ symmetry breaking is fixed by the Green-Schwarz mechanism for anomaly cancellation. The supersymmetric spectrum is obtained in terms of the $U(1)$ charges which are determined by the Yukawa matrices.

30 pages, LaTeX, no figures

References in corpus (8)

• Yukawa Textures and Anomalies
• Yukawa matrices from a spontaneously broken abelian symmetry
• Gauge Unification, Yukawa Hierarchy and the $\mu$ Problem
• Models of Fermion Mass Matrices Based on a Flavor- and Generation-Dependent U(1) Gauge Symmetry
• Soft scalar masses in supergravity with horizontal U(1)_X gauge symmetry
• Lepton Mass Matrix Models
• Flavour Changing Neutral Current Effects From Flavour Dependent Supergravity Couplings
• Dynamical mass matrices from effective superstring theories

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