2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/230378We study the minimal SUGRA phenomenology in the case of an alternative seesaw mechanism for generating neutrino masses. Changes in the neutrino sector lead to a modification of the supersymmetric particle spectrum and the sneutrino naturally arises as the lightest supersymmetric particle. The obtained sneutrino has a relic density within the WMAP range and is compatible with present nuclear recoil bounds.Proceedings of the XLIVth Rencontres de Moriond, Electroweak interactions and unified theoriesHigh Energy Physics - Phenomenologytext