Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $\Psi(2S)$ decay to $J/\Psi(1S)$ +2$\pi$ or $J/\Psi(1S)$ + $\sigma$ +
  2$\pi$   The BES Collaboration has measured $\Psi(2S)$ decay to $J/\Psi \pi^+\pi^-$.
Using the mixed hybrid theory for the $\Psi(2S)$ we estimate the decay to
$J/\Psi(1S)$ + $\sigma$. Using the known $\sigma \rightarrow 2\pi$ coupling
constant, we estimate the $\Psi(2S)$ to $J/\Psi(1S)$ + $2\pi$ decay rate and
angular distribution. This is an extension of our previous research on
$\Psi(2S)$ Decay to $J/\Psi(1S)$ +$\sigma$ + 2$\pi^o$, without the production
of 2$\pi^o$, and with an estimate of the $\sigma \rightarrow \pi^+ + \pi^-$
transition.

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The categories of this paper are: acc-phys
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
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
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat