2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217760We summarize the main characteristics and recent results on B->Xulnu decays of a model based on soft-gluon resummation and an analytic time-like QCD coupling.To appear in proceedings of Second Workshop on Theory, Phenomenology and Experiments in Heavy Flavor Physics, Capri, Italy, 16-18 June 2008High Energy Physics - Experimenttext