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 Tevatron 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 Tevatron energies.

21
The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin
2
The categories of this paper are: math
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom