Flavour structure, flavour symmetry and supersymmetry

Abstract

We discuss the role played by the horizontal flavour symmetry in supersymmetric theories. In particular, we consider the horizontal symmetry $SU(3{)}_H$ between the three fermion families and show how this concept can help in explaining the fermion mass spectrum and mixing pattern in the context of SUSY GUTs.

12 LaTeX pages. Talk presented at the Int. Workshop `30 Years of Supersymmetry', Minneapolis, USA, 13-27 Oct. 2000. To appear in Nucl. Phys. Proc. Suppl

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