2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/180390We study implications of thermal leptogenesis for the superparticle mass spectrum. A consistent picture is obtained if the lightest superparticle is the gravitino, which can be the dominant component of cold dark matter. In the case of a long-lived charged scalar lepton as next-to-lightest superparticle, supergravity can be tested at the next generation of colliders, LHC and ILC.9 pages, 7 figures, contribution to the proceedings of SUSY06, IrvineHigh Energy Physics - Phenomenologytext