2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41902The talk presents an ab initio construct of the spacetime structure underlying massive gravitinos. We argue that single spin interpretation of massive gravitino is untenable, and that a spin measurement in the rest frame for an unpolarized ensemble of massive gravitinos, would yield the results 3/2^- with probability one half, and 1/2 with probability one half. The latter is distributed uniformly, i.e. as 1/4, among the two spin-1/2^+ and spin-1/2^- states of opposite parities. From that we draw the conclusion that the massive gravitino should be interpreted as a particle of multiple spin. We expect that a extension of this work to finite-range gravity shall endow the graviton with spins 0, 1, and 2 components.13 pages, 2 figures, uses iopart.cls, Invited talk at Beyond the Desert 2002, Oulu, Finland, June 2-7, 2002High Energy Physics - PhenomenologyAstrophysicsHigh Energy Physics - TheoryNuclear TheorySpacetime Structure of Massive Gravitinostext