2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/46585We consider the extended electroweak gauge group SU(2)_1 \times SU(2)_2 \times U(1)_Y where the first and second families of fermions couple to SU(2)_1 while the third family couples to SU(2)_2. Bounds based an precision electroweak observables and heavy gauge boson searches are placed on the new parameters of the theory. The extra gauge bosons can be as light as about a TeV and can be discovered at future colliders such as the NLC and LHC for a wide range of the parameter space. FCNC interactions are also considered.5 pages, LaTeX, uses stwol.sty and epsf.sty. 3 figures included. Talk given at the 28th International Conference on High Energy Physics, Warsaw, Poland, July 1996. To appear in the proceedingsHigh Energy Physics - Phenomenologytext