Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analysis of the strong $D_{2}^{*}(2460)^{0}\rightarrow D^+ \pi^- $ and
  $D_{s2}^{*}(2573)^{+}\rightarrow D^{+} K^{0}$ transitions via QCD sum rules   The strong $D_{2}^{*}(2460)^{0}\rightarrow D^+ \pi^- $ and
$D_{s2}^{*}(2573)^{+}\rightarrow D^{+} K^{0}$ transitions are analyzed via
three point QCD sum rules. First, we calculate the corresponding strong
coupling constants $g_{D_2^*D\pi}$ and $g_{D_{s2}^*DK}$. Then, we use them to
calculate the corresponding decay widths and branching ratios. Making use of
the existing experimental data on the ratio of the decay width in the
pseudoscaler $D$ channel to that of the vector $D^*$ channel, finally, we
estimate the decay width and branching ratio of the strong $D_2^*(2460)^0
\rightarrow D^*(2010)^+\pi^-$ transition.

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The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org