2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/211117We compare the high energy behaviour of hadronic photon-photon cross-sections in different models. We find that the photon-photon cross-section appears to rise faster than the purely hadronic ones (proton-proton and proton-antiproton).7 pages, 5 figures. Presented at Photon2007, Paris, July 2007. Requires photon2007.clsHigh Energy Physics - Phenomenologytext