@article{363dd91f3dc6413eaeeba221cf9562e4,
title = "The physics of ultraperipheral collisions at the LHC",
abstract = "We discuss the physics of large impact parameter interactions at the LHC: ultraperipheral collisions (UPCs). The dominant processes in UPCs are photon-nucleon (nucleus) interactions. The current LHC detector configurations can explore hard phenomena at small x with nuclei and nucleons at photon-nucleon center-of-mass energies above 1 TeV, extending the x range of HERA by a factor of ten. In particular, it will be possible to probe diffractive and inclusive parton densities in nuclei using several processes. The interaction of small dipoles with protons and nuclei can be investigated in elastic and quasi-elastic J / ψ and Υ production as well as in high t ρ0 production accompanied by a rapidity gap. Several of these phenomena provide clean signatures of the onset of the new high gluon density QCD regime. The LHC is in the kinematic range where nonlinear effects are several times larger than those at HERA. Two-photon processes in UPCs are also studied. In addition, while UPCs play a role in limiting the maximum beam luminosity, they can also be used as a luminosity monitor by measuring mutual electromagnetic dissociation of the beam nuclei. We also review similar studies at HERA and RHIC as well as describe the potential use of the LHC detectors for UPC measurements.",
author = "Baltz, {A. J.} and G. Baur and D. d'Enterria and L. Frankfurt and F. Gelis and V. Guzey and K. Hencken and Yu Kharlov and M. Klasen and Klein, {S. R.} and V. Nikulin and J. Nystrand and Pshenichnov, {I. A.} and S. Sadovsky and E. Scapparone and J. Seger and M. Strikman and M. Tverskoy and R. Vogt and White, {S. N.} and Wiedemann, {U. A.} and P. Yepes and M. Zhalov",
note = "Funding Information: We thank C. Bertulani, D. Brandt, U. Dreyer, J.M. Jowett, V. Serbo, D. Trautmann and C. Weiss for helpful discussions. This work was supported in part by the US Department of Energy: Contract Numbers DE-AC02-05CH11231 (S.R. Klein and R. Vogt); W-7405-Eng-48 (R. Vogt); DE-FG02-93ER40771 (M. Strikman); DE-AC02-98CH10886 (A.J. Baltz and S.N. White); and DE-FG03-93ER40772 (P. Yepes). The work of R. Vogt was also supported in part by the National Science Foundation Grant NSF PHY-0555660. D. d{\textquoteright}Enterria acknowledges support by the 6th EU Framework Programme contract MEIF-CT-2005-025073. V. Nikulin and M. Zhalov would like to acknowledge the support provided by CERN-INTAS grant no. 05-103-7484.",
year = "2008",
month = mar,
doi = "10.1016/j.physrep.2007.12.001",
language = "אנגלית",
volume = "458",
pages = "1--171",
journal = "Physics Reports",
issn = "0370-1573",
publisher = "Elsevier B.V.",
number = "1-3",
}