2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/187516We calculate the Z boson propagator correction, as described by the S parameter, in technicolor theories with extended technicolor interactions included. Our method is to solve the Bethe-Salpeter equation for the requisite current-current correlation functions. Our results suggest that the inclusion of extended technicolor interactions has a relatively small effect on S.15pages, 8 figuresHigh Energy Physics - Phenomenologytext