Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Physics in the tau-charm Region at BESIII   The Beijing Spectrometer (BESIII) collaboration uses $e^+e^-$ collisions in
the tau-charm energy region to study a broad spectrum of topics. These include
studies of light mesons and light baryons, studies of charmonium, including
exotic mesons and baryons containing charmonium, studies of charmed mesons and
baryons, studies of QCD and tau physics, as well as searches for new physics.
The following is a Snowmass white paper that outlines the BESIII
accomplishments and potential in each of these areas.

2
The categories of this paper are: math
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th