Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Applications of Nonrelativistic Effective Field Theories to quarkonium
  systems with a small radius   We review some predictions of nonrelativistic effective field theories for
heavy quark-antiquark systems with a small typical radius, r<1/\Lambda_QCD.

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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: adap-org
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The categories of this paper are: econ
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: cs
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The categories of this paper are: hep-lat
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The categories of this paper are: astro-ph
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: nlin