2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/43403We consider theories with spontaneously broken global or local supersymmetry where the pseudo-goldstino or the gravitino is the lightest superparticle (LSP). Assuming that the long-lived next-to-lightest superparticle (NSP) is a charged slepton, we study several supergravity predictions: the NSP lifetime, angular and energy distributions in 3-body NSP decays. The characteristic couplings of the gravitino, or goldstino, can be tested even for very small masses.11 pages, 14 figures, Contribution to the LHC / LC study group report, eds. G. Weiglein et alHigh Energy Physics - Phenomenologytext