Astrophysical bounds on superlight gravitinos

Abstract

We derive the allowed mass range for the superlight gravitino present in a large class of supersymmetric models from the observed luminosity from Supernova 1987A. We find that for photino masses of order 100 GeV, the mass range $2.6\times 10^{-6}eV\le m_{\tilde{g}}\le 2.2\times 10^{-8}eV$ for the gravitino $\tilde{g}$ is excluded by SN1987A observations. Unlike the bounds on $m_{\tilde{g}}$ from nucleosynthesis, the bounds in the present paper do not depend critically on the uncertainties of the observational input.

8 pages, no figures

References in corpus (3)

• New Tools for Low Energy Dynamical Supersymmetry Breaking
• Experimental Signatures of Low Energy Gauge Mediated Supersymmetry Breaking
• Supersymmetric analysis and predictions based on the CDF eeγγ+ missing E_T event

Cited by in corpus (11)

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• Phenomenology of a leptonic goldstino and invisible Higgs boson decays
• Effective Lagrangians and Light Gravitino Phenomenology
• Light-Gravitino Production at Hadron Colliders
• Supernova Constraints on a Superlight Gravitino
• Gravitinos from Gravitational Collapse
• Astrophysical constraints on superlight gravitinos