Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Glueball Spectrum for QCD from AdS Supergravity Duality   We present the analysis of the complete glueball spectrum for the $AdS^7$
black hole supergravity dual of $QCD_4$ in strong coupling limit: $g^2 N \to
\infty$. The bosonic fields in the supergravity multiplet lead to 6 independent
wave equations contributing to glueball states with $J^{PC} = 2^{++},1^{+-},
1^{--}$, $0^{++}$ and $0^{-+}$. We study the spectral splitting and degeneracy
patterns for both $QCD_4$ and $QCD_3$. Despite the expected limitations of a
leading order strong coupling approximation, the pattern of spins, parities and
mass inequalities bear a striking resemblance to the known $QCD_4$ glueball
spectrum as determined by lattice simulations at weak coupling.

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The categories of this paper are: quant-ph
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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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: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: plasm-ph
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The categories of this paper are: math
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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: econ