Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diffraction, Saturation and pp Cross Sections at the LHC   Results from the large hadron collider (LHC) show that no available Monte
Carlo simulation incorporates our pre-LHC knowledge of soft and hard
diffraction in a way that could be reliably extrapolated to LHC energies. As a
simulation is needed to establish triggers, perform underlying event
corrections and calculate acceptances, the lack of a robust simulation affects
all measurements at the LHC. Particularly affected are the measurements of
processes with large diffractive rapidity gaps, which constitute about one
quarter of the inelastic cross section. In this paper, a previously described
phenomenological model based on a saturation effect observed in single
diffraction dissociation in pre-LHC data, validated by its successful
application to several diffractive processes, is used to predict the total and
total-inelastic proton-proton cross sections at the LHC. The prediction for the
total-inelastic cross section at a center of mass collision energy of 7 TeV is
compared with recent results from ATLAS and CMS.

23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
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
29
The categories of this paper are: funct-an
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The categories of this paper are: q-alg
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-bio
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The categories of this paper are: cs