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A dynamical mechanism to explain the top-bottom quark mass hierarchy

A. Doff, A. A. Natale

hep-pharXiv:hep-ph/0408193

Abstract

We discuss the mass splitting between the the top and bottom quarks in a technicolor scenario. The model proposed here contains a left-right electroweak gauge group. An extended technicolor group and mirror fermions are introduced. The top-bottom quark mass splitting turns out to be intimately connected to the breaking of the left-right gauge symmetry. Weak isospin violation occurs within the experimental limits.

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