Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of the branching fraction of $J/\psi \rightarrow \omega
  \eta' \pi^{+}\pi^{-}$ and search for $J/\psi \rightarrow \omega X(1835), \,
  X(1835) \rightarrow \eta' \pi^{+}\pi^{-}$ decay   Using a sample of $1.31 \times 10^{9}$ $J/\psi$ events collected by the
BESIII detector at BEPCII during 2009 and 2012, we study the $J/\psi
\rightarrow \omega \eta' \pi^{+}\pi^{-}$ hadronic process. For the first time,
we measure the branching ratio $B(J/\psi \rightarrow \omega \eta'
\pi^{+}\pi^{-}) = (1.12 \pm 0.02 \pm 0.13) \times 10^{-3}$. We search for the
$X(1835)$ state in the $\eta' \pi^{+}\pi^{-}$ invariant mass spectra. No
evidence is found and we estimate the upper limit on the branching fraction at
90% confidence level to be $B(J/\psi \rightarrow \omega X(1835), \, X(1835)
\rightarrow \eta' \pi^{+}\pi^{-}) < 6.2 \times 10^{-5}$.

18
The categories of this paper are: econ
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph