Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Saturation effects in pp scattering in the impact-parameter
  representation   The impact of unitarity is considered in different approaches to saturation
in impact-parameter space. The energy and momentum-transfer dependence of the
total and differential cross sections and of the ratio of the real to imaginary
parts of the scattering amplitude are obtained in a model that includes soft
and hard pomeron contributions, coupled to hadrons via the electromagnetic form
factor. It is shown that the hard pomeron may significantly contribute to soft
physics at the LHC. A similar conclusion can also be reached in the framework
of non-linear approaches to unitarisation of the BFKL pomeron.

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The categories of this paper are: funct-an
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex