2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89039A simple formula for the scattering of wave packets from a square well at long times is derived. The expression shows that the phenomenon of wave packet diffraction in space and time exists in three dimensions also. An experiment for the verification of the phenomenon is described and simulated numerically.Latex format, graph correctedQuantum PhysicsHigh Energy Physics - TheoryMathematical Physicstext