Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of $J/{\psi}$ ${\to}$ $D_{s,d}V$ decays with perturbative QCD
  approach   Inspired by the recent measurements on two-body nonleptonic $J/{\psi}$ weak
decay at BESIII, the charm-changing $J/{\psi}$ ${\to}$ $D_{s,d}V$ weak decays
are studied with perturbative QCD approach, where $V$ denotes ${\rho}$ and
$K^{\ast}$ vector mesons. It is found that branching ratio for $J/{\psi}$
${\to}$ $D_{s}{\rho}$ decay can reach up to ${\cal O}(10^{-9})$, which is
within the potential measurement capability of the future high-luminosity
experiments.

31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
12
The categories of this paper are: nucl-th
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn