Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Interest of Large-t Elastic Scattering   Existing data for large-$t$ $pp$ elastic-scattering differential
cross-sections are energy-independent and behave as $t^{-8}$. This has been
explained in terms of triple-gluon exchange, or alternatively through
triple-singlet exchange. A discussion is given of the problems raised by each
of these explanations, and of the possibility that at RHIC or LHC energies the
exchange of three BFKL pomerons might result in a rapid rise with energy.

31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
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The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
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The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom