Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interference effects in the decay \phi\to \pi^{0}\pi^{0}\gamma and the
  coupling constant g_{\phi\sigma\gamma}   We study the radiative decay $\phi\to\pi^{0}\pi^{0}\gamma$ within the
framework of a phenomenological approach in which the contributions of
$\sigma$-meson, $\rho$-meson and $f_0$-meson are considered. We analyze the
interference effects between different contributions and utilizing the
experimental branching ratio for this decay we estimate the coupling constant
$g_{\phi\sigma\gamma}$.

14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
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The categories of this paper are: econ
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
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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: solv-int
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an