2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174944It is suggested that the observed excess of muons in studies of $p \bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV arises from the decay of doubly-charged bosons. Such particles are predicted in the 3-3-1 model where the electroweak gauge group is extended to $SU(3) \times U(1)$.5 pages latexHigh Energy Physics - Phenomenologytext