Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New Measurement of Exclusive Decays of the chi_c0 and chi_c2 to
  Two-Meson Final States   Using a sample of 2.59 times 10^7 psi(2S) decays collected by the CLEO--c
detector, we present results of a study of chi_{c0} and chi_{c2} decays into
two-meson final states. We present the world's most precise measurements of the
chi_{cJ,(J=0,2)} -> pi^+pi^-, pi^0 pi^0, K^+K^-, K^0_S K^0_S, eta eta and
eta^{prime} eta^{prime} branching fractions, and a search for chi_c decays into
eta eta^{prime}. These results shed light on the mechanism of charmonium decays
into pseudoscalar mesons.

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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
3
The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: cond-mat
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The categories of this paper are: nlin
2
The categories of this paper are: math
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The categories of this paper are: funct-an