Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decoupling Limits in M-Theory   Limits of a system of N Dn-branes in which the bulk and string degrees of
freedom decouple to leave a `matter' theory are investigated and, for n>4,
either give a free theory or require taking $N \to \infty$. The decoupled
matter theory is described at low energies by the $N \to \infty$ limit of n+1
dimensional \sym, and at high energies by a free type II string theory in a
curved space-time. Metastable bound states of D6-branes with mass $M$ and
D0-branes with mass $m$ are shown to have an energy proportional to
$M^{1/3}m^{2/3}$ and decouple, whereas in matrix theory they only decouple in
the large N limit.

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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
2
The categories of this paper are: math
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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: stat