Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parton-Parton Elastic Scattering and Rapidity Gaps at Very High Energies   The theory of the perturbative pomeron, due to Lipatov and collaborators, is
used to compute the probability of observing parton-parton elastic scattering
and rapidity gaps between jets in hadron collisions at very high energies.

17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
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The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
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The categories of this paper are: stat
13
The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
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The categories of this paper are: nucl-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex