2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/49688The t->cH decay width has been computed in the standard model with a light Higgs boson. The corresponding branching fraction has been found to be in the range B(t->cH) ~ 10^{-13} - 10^{-14} for M_Z < m_H < 2 M_W. Our results correct the numerical evaluation usually quoted in the literature.5 pages, 2 figures. To appear in the DESY report on "Physics Studies for a Future Linear Collider", DESY 123FHigh Energy Physics - Phenomenologytext