2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/175442A dynamical approach to semi-inclusive decays based on an effective running coupling for the strong interactions is described.4 pages, 4 figures (reference added); to be published in the Proceedings of Quark Confinement and the Hadron Spectrum VII, Ponta Delgada (Portugal), Sep 2-7, 2006High Energy Physics - Phenomenologytext