Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Are Bulk Axions in Models with Extra, Large, Compact Dimensions
  Observable?   The high degeneracy of KK modes in models which have bulk axions moving in
some extra, compact dimensions which are larger than O (Angstrom)strongly
tightens the supernova upper bounds on the axion photon coupling making axions
practically unobservable. Conversely, discovering axions directly or indirectly
will exclude such models. These drastic conclusions are avoided if the
supernova and bounds from solar axion searches are relaxed.

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The categories of this paper are: math-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: physics
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The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: math
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The categories of this paper are: econ
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The categories of this paper are: cmp-lg
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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: bayes-an