2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41053A brief review of the modern QCD theory of diffractive DIS is given. The recent progress has been remarkably rapid, all the principal predictions from the color dipole approach to diffraction - the $(Q^2+m_V^2)$ scaling, the pattern of SCHNC, shrinkage of the diffraction cone in hard diffractive DIS, the strong impact of longitudinal gluons in inclusive $J/Ψ$ production at Tevatron -, have been confirmed experimentally.Invited talk at the International Conference on New Trends in High Eenergy Physics, (experiment, phenomenology, theory), Yalta, Crimea, Ukraine, 22-29 September, 2001, 16 pages, 6 figures, typos in references correctedHigh Energy Physics - PhenomenologyHigh Energy Physics - Experimenttext