Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Astrophysical bounds on superlight gravitinos   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 $2.6\times 10^{-6} eV \leq m_{\tilde{g}} \leq 2.2\times 10^{-8} eV$ 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.

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The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
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The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: stat
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
3
The categories of this paper are: physics
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The categories of this paper are: adap-org
2
The categories of this paper are: math
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The categories of this paper are: hep-lat
1
The categories of this paper are: cs
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga