Tagging photon interactions at the LHC
Abstract
Photon interactions at the LHC result in striking final states with much lower hadronic activity in the central detectors than for pp interactions. In addition, the elastic exchange of a photon leads to a proton scattered at almost zero-degree angle. Tagging photon interactions relies on either the use of large rapidity gaps or on the detection of the scattered proton using very forward detectors. The studies related to such detectors are presented, including their characterization, their acceptance and reconstruction performance. Limitations due to the LHC beamline misalignment and possible solutions are also given.
Keywords
Cite
@article{arxiv.0806.4941,
title = {Tagging photon interactions at the LHC},
author = {X. Rouby},
journal= {arXiv preprint arXiv:0806.4941},
year = {2008}
}
Comments
9 pages, 8 figures. Talk given at the Workshop on "High-energy photon collisions at the LHC", April 22-25, 2008, CERN, Switzerland. To appear in the proceedings