2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47237We show that a recently proposed extension of QCD by the addition of a multiplet of scalars transforming as (2,2,1) under $SU(2)_L\times SU(2)_R\times SU(3)_ {colour}$ provides a natural and parameter-free explanation for many observed features of the excess 4 jet events reported by ALEPH.4 pages in Latex(revtex)High Energy Physics - Phenomenologytext