Advertisement

Nuclear \(\gamma\)-radiation as a signature of ultra-peripheral ion collisions at the LHC

  • Yu V. Kharlov
  • V. L. KorotkikhEmail author
Article

Abstract.

We study the peripheral ion collisions at LHC energies where a nucleus is excited to a discrete state and then emits \(\gamma\)-rays. Large nuclear Lorenz factors allow the observation of high-energy photons up to a few tens GeV and in the angular region of a few hundred micro-radians from the beam direction. These photons can be used to tagg events with particle production in the central rapidity region in ultra-peripheral collisions. To detect these photons it is necessary to have an electromagnetic detector in front of the zero-degree calorimeter in LHC experiments.

Keywords

Radiation Calorimeter Rapidity Region Central Rapidity Beam Direction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    C.A. Bertulani, G. Baur, Phys. Rep. 163, 299 (1988).CrossRefGoogle Scholar
  2. 2.
    G. Baur, K. Hencken, D. Trautmann, J. Phys. G 24, 1657 (1998).CrossRefGoogle Scholar
  3. 3.
    G. Baur et al. , Phys. Rep. 364, 359 (2002).CrossRefGoogle Scholar
  4. 4.
    V.P. Goncalves, C.A. Bertulani, Phys. Rev. C 65, 054905 (2002).CrossRefGoogle Scholar
  5. 5.
    M. Greiner, M. Vidovic, G. Soff, Phys. Rev. C 51, 911 (1995).CrossRefGoogle Scholar
  6. 6.
    S.R. Klein, J. Nystrand, R. Vogt, Eur. Phys. J. C 21, 563 (2001).Google Scholar
  7. 7.
    S.M. Lietti, C.G. Roldao, Phys. Lett. B 540, 252 (2002).CrossRefGoogle Scholar
  8. 8.
    G. Baur et al. , CMS Note 1998/009, hep-ph/9904361.Google Scholar
  9. 9.
    V.V. Balashov, V.L. Korotkikh, I.V. Moskalenko, Proceedings of the 21th ICRC, Adelaide, Vol. 2 (Univesrity of Adelaide, 1990) p. 416.Google Scholar
  10. 10.
    V.L. Korotkikh, K.A. Chikin, Eur. Phys. J. A 14, 199 (2002).CrossRefGoogle Scholar
  11. 11.
    V.M. Budnev et al. , Phys. Rep. 15, 182 (1975).Google Scholar
  12. 12.
    G. Baur, L.G. Ferreira, Phys. Lett. B 254, 30 (1991).CrossRefGoogle Scholar
  13. 13.
    R. Helm, Phys. Rev. 104, 1466 (1956).CrossRefGoogle Scholar
  14. 14.
    Yu.N. Eldyshev et al. , Sov. J. Nucl. Phys. 16, 282 (1973).Google Scholar
  15. 15.
    P.M. Endt et al. , Nucl. Phys. A 633, 1 (1998).CrossRefGoogle Scholar
  16. 16.
    I.S. Gulkarov, Fiz. Elem. Chastits At. Yadra 19, 345 (1988).Google Scholar
  17. 17.
    M.J. Martin, Nuclear Data Sheets 147, 203 (1986).Google Scholar
  18. 18.
    D. Goutte et al. , Phys. Rev. Lett. 45, 1618 (1980).CrossRefGoogle Scholar
  19. 19.
    K. Hencken et al. , TPHIC, Event generator of two photon interactions in heavy ion collisions, Protvino, IHEP 96-38, 1996.Google Scholar
  20. 20.
    C. Roland, Heavy ion physics at the LHC with the compact muon solenoid detector, nucl-ex/0405015.Google Scholar
  21. 21.
    ALICE Collaboration, Technical design report of the ZDC, CERN/LHCC 99-5, 1999.Google Scholar
  22. 22.
    Particle Data Group (K. Hagiwara et al. ), Phys. Rev. D 66, 010001 (2002).CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  1. 1.Institute for High Energy PhysicsProtvinoRussia
  2. 2.Scobeltsyn Institute of Nuclear PhysicsMoscow State UniversityMoscowRussia

Personalised recommendations