2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39968I review the modern status of QCD theory of diffractive vector meson production with the focus on shrinkage of photons with Q2 and (Q2+mV2)$scaling, j-plane properties of the QCD pomeron and Regge shrinkage of diffraction cone, $s$-channel helicity non-conservation and sensitivity to spin-orbital properties of vector mesons.9 p., 5 fig., Invited talk at Meson-2000, Krakow, May 2000High Energy Physics - Phenomenologytext