2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44589Azimuthal distributions in high-energy processes give information about the helicity structure of diffractive reactions. I discuss predictions of several dynamical mechanisms in this context, both for electron-proton and for hadron-hadron collisions.6 pages, 3 figures. Talk given at the XIth International Conference on Elastic and Diffractive Scattering, Blois, France, May 2005High Energy Physics - Phenomenologytext