2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/201845We show that in gauge mediation models where heavy messenger masses are provided by the adjoint Higgs field of an underlying SU(5) theory, a generalized gauge mediation spectrum arises with the characteristic feature of having a neutralino LSP much lighter than in the standard gauge or gravity mediation schemes. This naturally fits in a hybrid scenario where gravity mediation, while subdominant with respect to gauge mediation, provides mu and Bmu parameters of the appropriate size for electroweak symmetry breaking.32 pages. v2: revised discussions of the generation of Bmu and of the dark matter constraint; numerous small redactional changes; remarks and references addedHigh Energy Physics - Phenomenologytext