Abstract

We use the result of the monopole in theSU2 gauge theory, the isospin degrees of freedom converted into spin, to show a mechanism which can give the conditionmq,l, rg,l≪1 in the composite model of quarks and leptons. In this paper, we have suggested a preon model with flavons fi, chromons Cα and somons sk, in which theSUH,2×UA,1× ×UB,1 binding forces are broken spontaneously by a triplet of Higgs fields. TheSUH,2 give a non-Abelian monopole background field andUA,1×UB,1 are interpreted as arising from hidden electric- and magnetic-type charges.

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