Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonperturbative Effects in Quarkonia Associated with Large Orders in
  Perturbation Theory   We show that the perturbation series for quarkonia energies diverges at large
orders. This results in a perturbative ambiguity in the energy that scales as
e^(-1/a*Lambda) where a is the Bohr radius of quarkonium and Lambda is the QCD
scale parameter. This ambiguity is associated with a nonperturbative
contribution to the energy from distances of order 1/Lambda and greater. This
contribution is separate from that of the gluon condensate.

14
The categories of this paper are: math-ph
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
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The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn