2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/197209The recent measurement from the CLEO experiment presents the $DD^*π$ coupling, $17.9\pm 0.3 \pm 1.9$. This value is much larger than any of QCD sum rule predictions available in literature. We report that, with a relevant treatment of the continuum subtraction as well as with the asymptotic form of the twist-2 pion wave function, the light-cone QCD sum rule can provide the coupling comparable to the experimental value. The stability of the resulting sum rule becomes much better with these corrections.8 pages including 1 postscript figureHigh Energy Physics - PhenomenologyNuclear Theorytext