2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41182The $π$ and $ππ$ decay widths of the excited charm mesons are calculated using a Hamiltonian model within the framework of the covariant Blankenbecler-Sugar equation. The pion-light constituent quark coupling is described by the chiral pseudovector Lagrangian.3 pages, 1 figure. For the proceedings of Menu 2001, Washington DC, July 26-31, 2001High Energy Physics - Phenomenologytext