Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical Study of Periodic Instanton Configurations in Two-dimensional
  Abelian Higgs Theory   Numerical minimization of the Euclidean action of the two-dimensional Abelian
Higgs model is used to construct periodic instantons, the euclidean field
configurations with two turning points describing transitions between the
vicinities of topologically distinct vacua. Periodic instantons are found at
any energy ( up to the sphaleron energy $E_{sph}$ ) and for wide range of
parameters of the theory. We obtain the dependence of the action and the energy
of periodic instanton on its period; these quantities directly determine the
probability of certain multiparticle scattering events.

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The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph