Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Study of the branching ratio of $\psi(3770)\to D\bar{D}$ in $e^+e^-\to
  D\bar{D}$ scattering   Based on the data of BES and Belle, the production of $D\bar{D}$ in the
$e^+e^-\to D\bar{D}$ scattering process is studied in this paper. We analyze
the continuum and resonant contributions in the energy region from 3.7 to 4.4
GeV. In the $\chi^2$ fit to data, we obtain the resonance parameters of
$\psi(3770)$, the branching ratio of $\psi(3770)\to D\bar{D}$ decay by
confronting the data to the theoretical formula where both the contributions of
the resonances, continuum and interference effects are included. We obtain the
branching ratio of $\psi(3770)\to D\bar{D}$ decay is $97.2%\pm 8.9%$, as well
as the branching ratio of $\psi(4040)$, $\psi(4160)\to D\bar{D}$ decays.

25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an