2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47254We show by explicit construction of an alternative theory for the strong interactions that it cannot be distinguished from QCD by any of the usual precision tests except on extending these theories to the full electroweak theory, by the Z- particle width.Latex(revtex) 4 pages Rep No:IMSc/97/07/31High Energy Physics - Phenomenologytext