Roy, Probir ; Joshi, P. S. ; Chitre, S. M. (1991) Gravitino mass bounds in a general cosmological scenario Physics Letters A, 160 (1). pp. 36-40. ISSN 0375-9601
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/037596...
Related URL: http://dx.doi.org/10.1016/0375-9601(91)90202-J
Abstract
A stable gravitino is shown to respect an upper mass bound 1 keV and an unstable one a lower mass bound 10 TeV from the global hyperbolicity property alone without the assumptions of a Friedmann universe. The specific Friedmann cosmology with a critical mass density in fact reduces the upper bound for a stable gravitino to 0.1 keV. Complications due to inflation and the anti-de Sitter nature of the spacetime before the breakdown of local supersymmetry are also discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 5828 |
| Deposited On: | 19 Oct 2010 10:44 |
| Last Modified: | 20 Dec 2011 11:40 |
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