2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48450We summarize the Standard Model predictions for the three-body decays of the top quark t->WbX, where X = Z,H,g or gamma. Because of strong phase space suppression, we find that the branching ratios for the Z and H final states are of order a few times 10^{-7}, rendering them invisible at Tevatron Run II. On the other hand, the decays to g and gamma are suppressed only by the expected factor of alpha_s or alpha_{em}.3 pages including 7 embedded figures. Talk presented at the Thinkshop on Top-Quark Physics for Run II, held at the Fermi National Accelerator Laboratory, October 16-18, 1998High Energy Physics - Phenomenologytext