Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of the Decay phi --> pi0 pi0 gamma with the KLOE Detector   We have measured the branching ratio BR(phi --> pi0 pi0 gamma) with the KLOE
detector using a sample of ~5x10^7 phi decays. phi mesons are produced at
DAFNE, the Frascati phi-factory. We find BR(phi --> pi0 pi0 gamma) = (1.09 +-
0.03 (stat) +- 0.05 (syst))x10^-4. We fit the two--pion mass spectrum to models
to disentangle contributions from various sources.

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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: physics