2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41528We discuss the high energy behaviour of total cross-sections for protons and photons, in a QCD based framework with particular emphasis on the role played by soft gluons13 pages, 10 figures, Presented by G. Pancheri at the International Workshop on QCD, Martina Franca, Italy, June 16-20,2001. To appear in the proceedingsHigh Energy Physics - Phenomenologytext