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urn:hdl:2445/12353 Gravitinos from gravitational collapse Massó i Soler, Eduard, 1954- Toldrà Sabaté, Ramon Partícules (Física nuclear) Relativitat general (Física) Estels Supersimetria Col·lapse gravitacional Particles (Nuclear physics) General relativity (Physics) Stars Supersymmetry Gravitational collapse We reanalyze the limits on the gravitino mass m 3 / 2 in superlight gravitino scenarios derived from arguments on energy loss during gravitational collapse. We conclude that the mass range 10 − 6 eV <~ m 3 / 2 <~ 2.3 × 10 − 5 eV is excluded by SN 1987A data. In terms of the scale of supersymmetry breaking Λ , the range 70 GeV <~ Λ <~ 300 GeV is not allowed. 2010-05-06T09:06:23Z 2010-05-06T09:06:23Z 1998 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.57.614 Physical Review D, 1998, vol. 57, núm. 1, p. 614-616 http://dx.doi.org/10.1103/PhysRevD.57.614 (c) The American Physical Society, 1998 info:eu-repo/semantics/openAccess The American Physical Society Articles publicats en revistes (Física de la Matèria Condensada)