Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of $e^+e^-\to \chi_{c0}\omega$ and missing higher charmonium
  $\psi(4S)$   Stimulated by the recent BESIII observation of a new resonance in $e^+ e^-
\to \omega \chi_{c0}$ and by the fact that this state is consistent with our
predicted $\psi(4S)$, in this work we estimate the meson loop contribution to
$\psi(4S) \to \omega \chi_{c0}$. The evaluation indicates that our theoretical
estimate can overlap with the experimental data in a reasonable parameter
range. This fact shows that introduction of the missing higher charmonium
$\psi(4S)$ provides a possible explanation to the recent BESIII observation.
The upper limit of a branching ratio of $\psi(4S) \to \eta J/\psi$ is also
predicted as $1.9 \times 10^{-3}$, which can be further tested by BESIII, Belle
and forthcoming BelleII.

23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics