2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48386Generalizing a covariant framework previously developed, it is shown that confinement insures that meson $\to q+\bar{q}$ decay amplitudes vanish when both quarks are on-shell. Regularization of singularities in a covariant linear potential associated with nonzero energy transfers (i.e. $q^2=0, q^μ\neq0$) is improved.Contributed paper to the Third International Conference On Quark Confinement, Jefferson Lab, Newport News, Virginia, June 7-12 1998High Energy Physics - PhenomenologyNuclear Theorytext