The physics of ultraperipheral collisions at the LHC

A. J. Baltz, G. Baur, D. d'Enterria, L. Frankfurt, F. Gelis, V. Guzey, K. Hencken, Yu Kharlov, M. Klasen, S. R. Klein, V. Nikulin, J. Nystrand, I. A. Pshenichnov, S. Sadovsky, E. Scapparone, Janet E. Seger, M. Strikman, M. Tverskoy, R. Vogt, S. N. White & 3 others U. A. Wiedemann, P. Yepes, M. Zhalov

Research output: Contribution to journalReview article

233 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)1-171
Number of pages171
JournalPhysics Reports
Volume458
Issue number1-3
DOIs
StatePublished - Mar 2008

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physics
nuclei
collisions
photons
luminosity
detectors
interactions
nucleons
partons
center of mass
monitors
kinematics
quantum chromodynamics
signatures
dissociation
electromagnetism
dipoles
protons
probes
configurations

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Baltz, A. J., Baur, G., d'Enterria, D., Frankfurt, L., Gelis, F., Guzey, V., ... Zhalov, M. (2008). The physics of ultraperipheral collisions at the LHC. Physics Reports, 458(1-3), 1-171. https://doi.org/10.1016/j.physrep.2007.12.001

The physics of ultraperipheral collisions at the LHC. / Baltz, A. J.; Baur, G.; d'Enterria, D.; Frankfurt, L.; Gelis, F.; Guzey, V.; Hencken, K.; Kharlov, Yu; Klasen, M.; Klein, S. R.; Nikulin, V.; Nystrand, J.; Pshenichnov, I. A.; Sadovsky, S.; Scapparone, E.; Seger, Janet E.; Strikman, M.; Tverskoy, M.; Vogt, R.; White, S. N.; Wiedemann, U. A.; Yepes, P.; Zhalov, M.

In: Physics Reports, Vol. 458, No. 1-3, 03.2008, p. 1-171.

Research output: Contribution to journalReview article

Baltz, AJ, Baur, G, d'Enterria, D, Frankfurt, L, Gelis, F, Guzey, V, Hencken, K, Kharlov, Y, Klasen, M, Klein, SR, Nikulin, V, Nystrand, J, Pshenichnov, IA, Sadovsky, S, Scapparone, E, Seger, JE, Strikman, M, Tverskoy, M, Vogt, R, White, SN, Wiedemann, UA, Yepes, P & Zhalov, M 2008, 'The physics of ultraperipheral collisions at the LHC', Physics Reports, vol. 458, no. 1-3, pp. 1-171. https://doi.org/10.1016/j.physrep.2007.12.001
Baltz AJ, Baur G, d'Enterria D, Frankfurt L, Gelis F, Guzey V et al. The physics of ultraperipheral collisions at the LHC. Physics Reports. 2008 Mar;458(1-3):1-171. https://doi.org/10.1016/j.physrep.2007.12.001
Baltz, A. J. ; Baur, G. ; d'Enterria, D. ; Frankfurt, L. ; Gelis, F. ; Guzey, V. ; Hencken, K. ; Kharlov, Yu ; Klasen, M. ; Klein, S. R. ; Nikulin, V. ; Nystrand, J. ; Pshenichnov, I. A. ; Sadovsky, S. ; Scapparone, E. ; Seger, Janet E. ; Strikman, M. ; Tverskoy, M. ; Vogt, R. ; White, S. N. ; Wiedemann, U. A. ; Yepes, P. ; Zhalov, M. / The physics of ultraperipheral collisions at the LHC. In: Physics Reports. 2008 ; Vol. 458, No. 1-3. pp. 1-171.
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AU - Guzey, V.

AU - Hencken, K.

AU - Kharlov, Yu

AU - Klasen, M.

AU - Klein, S. R.

AU - Nikulin, V.

AU - Nystrand, J.

AU - Pshenichnov, I. A.

AU - Sadovsky, S.

AU - Scapparone, E.

AU - Seger, Janet E.

AU - Strikman, M.

AU - Tverskoy, M.

AU - Vogt, R.

AU - White, S. N.

AU - Wiedemann, U. A.

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N2 - 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.

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