Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Branching Ratios in Proton Antiproton Annihilation at Rest from Large Nc
  QCD   We use classical or large Nc QCD to describe the mesons (pion, rho, omega)
coming from proton-antiproton annihilation at rest as classical fields, which
we then quantize as coherent states. This treatment gives a nearly parameter
free account of the pion branching ratios in annihilation.

35
The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org