Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charm Physics Performance Studies for PANDA   The study of the charmonium (cbar c) system is a powerful tool to understand
the strong interaction. In pbar p annihilations studied with PANDA, the mass
and width of the charmonium state, such as h_c, will be measured with an
excellent accuracy, determined by the very precise knowledge of the momentum,
p, beam resolution (dp/p=10e(-4)-10e(-5)) and not limited by the resolution of
the detector. The analysis of h_c demonstrates the feasibility to accurately
determine a specific final state in the spectrum of charmed mesons. The
preliminary background analysis of the pbar p -> pi0 pi0 pi0 decay competing
with a signal channel pbar p -> h_c -> eta_c + gamma -> (pi0 + pi0 + eta) +
gamma is under control. A comparison of three decay modes of charmonium h_c via
the electromagnetic transition is presented.

31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph