2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/58462The nature of the interaction of a soliton with an attractive well is elucidated using a model of two interacting point particles. The system shows the existence of trapped states at positive kinetic energy, as well as reflection by an attractive impurity, as found when a topological soliton scatters off an attractive well.Latex format, 2 figuresMathematical PhysicsNuclear TheoryClassical PhysicsQuantum Physicstext