Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Forward Physics at the LHC   We review two inter-related topics. First, we consider the behaviour of
"soft" scattering observables, such as sigma_{tot}, dsigma_{el}/dt,
dsigma_{SD}/dtdM^2, particle multiplicities etc., at high-energy
proton-(anti)proton colliders. We emphasize the sizeable effects of absorption
on high-energy `soft' processes, and, hence, the necessity to include
multi-Pomeron-Pomeron interactions in the usual multi-channel eikonal
description. We describe a multi-component model which has been tuned to the
available data for soft processes in the CERN-ISR to Tevatron energy range, and
which therefore allows predictions to be made for `soft' observables at the
LHC. The second topic concerns the calculation of the rate of exclusive
processes of the form pp --> p+A+p at high energy colliders, where A is a heavy
system. In particular, we discuss the survival probability of the rapidity gaps
(denoted by the + signs) to both eikonal and enhanced soft rescattering
effects. At the LHC energy, the most topical case is when A is a Higgs boson.
At the Tevatron, measurements have been made for the exclusive diffractive
production of various systems: A being either gamma-gamma, dijet, or a chi_c
meson. We compare the observed rates with the expectations. Finally, we
describe how predictions for exclusive processes may be checked in the early
runs of the LHC.

27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph