Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Long-distant contribution and $\chi_{c1}$ radiative decays to light
  vector meson   The discrepancy between the PQCD calculation and the CLEO data for
$\chi_{c1}\to \gamma V$ ($V=\rho^0,\,\omega,\,\phi$) stimulates our interest in
exploring extra mechanism of $\chi_{c1}$ decay. In this work, we apply an
important non-perturbative QCD effect, i.e., hadronic loop mechanism, to study
$\chi_{c1}\to \gamma V$ radiative decay. Our numerical result shows that the
theoretical results including the hadronic loop contribution and the PQCD
calculation of $\chi_{c1}\to \gamma V$ are consistent with the corresponding
CLEO data of $\chi_{c1}\to \gamma V$. We expect further experimental
measurement of $\chi_{c1}\to \gamma V$ at BES-III, which will be helpful to
test the hadronic loop effect on $\chi_{c1}$ decay.

14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph