Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Direct-Transmission Models of Dynamical Supersymmetry Breaking   We systematically construct gauge-mediated supersymmetry(SUSY)-breaking
models with direct transmission of SUSY-breaking effects to the standard-model
sector. We obtain a natural model with the gravitino mass $m_{3/2}$ smaller
than 1 keV as required from the standard cosmology. If all Yukawa coupling
constants are of order one,the SUSY-breaking scale $m_{SUSY}$ transmitted into
the standard-model sector is given by $m_{SUSY} \simeq 0.1 \alpha_i/(4\pi)
\Lambda$ where $\Lambda$ is the original dynamical SUSY-breaking scale.
Imposing $m_{SUSY} \simeq (10^2-10^3)$ GeV, we get $\Lambda \simeq (10^5-10^6)$
GeV, which yields the gravitino mass $m_{3/2}\simeq (10^{-2}-1)$ keV.

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The categories of this paper are: cs
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The categories of this paper are: physics
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The categories of this paper are: cond-mat
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The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: math