2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/135481High-energy diffractive physics has several interests for theoreticians and experimentalists. We first remind the reader of the main characteristics of diffraction in particles physics and present the calculation of a two-gluon exchange in which non-perturbative effects are introduced via new singularities from confinement.4 pages, 7 figures, Proceedings Jjc, La Rochelle, December 2006High Energy Physics - Phenomenologytext