Radiative fermion mass matrix generation in supersymmetric models

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Abstract
Supersymmetric SU(2)L(X)U(1) horizontal models are studied. The non-renormalisation theorems of supersymmetry are used to make the mass generation and flavour mixing natural. For three families, the authors study the fermion mass matrix generation mechanism as a radiative effect due to horizontal interaction, using various representations of the gauge horizontal groups SU(2)H and SU(3)H. An attractive possibility leading to a realistic mass matrix is found.

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