Zeitschrift für Physik C Particles and Fields

, Volume 56, Issue 4, pp 589–599 | Cite as

Higher order QCD corrections to the photoproduction of a direct photon at HERA

  • P. Aurenche
  • P. Chiappetta
  • M. Fontannaz
  • J. P. Guillet
  • E. Pilon
Article
Received:

Abstract

The contribution of resolved photons to the photoproduction cross section of direct photons is reexamined. Higher order,O(α2αs), QCD corrections to this contribution are calculated and turn out to be important at HERA energies. The observation of direct photons in the medium-p⊥ range (p⊥∼5 GeV/c) should provide the opportunity to measure the gluon content of the photon.

Keywords

Field Theory Elementary Particle Quantum Field Theory Particle Acceleration Direct Photon 
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.
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References

  1. 1.
    J.J. Engelen: in the “Proceedings of the Workshop on Experimentation at HERA NIKHEF Amsterdam, 1983Google Scholar
  2. 2.
    R. Barate et al.: Phys. Lett. B182 (1986) 409; B174 (1986) 458; B168 (1986) 163Google Scholar
  3. 3.
    P. Astbury et al.: Phys. Lett. B. 152 (1985) 419Google Scholar
  4. 4.
    R.J. Apsimon et al.: Z. Phys. C — Particles and Fields 43 (1989) 63Google Scholar
  5. 5.
    J.R. Raab et al.: Phys. Rev. D37 (1988) 2391; J.C. Anjos et al.: Phys. Rev. Lett. 62 (1989) 513Google Scholar
  6. 6.
    P. Aurenche et al.: Z. Phys. C — Particles and Fields 24 (1984) 309Google Scholar
  7. 7.
    D.W. Duke, J.F. Owens: Phys. Rev. D26 (1982) 1600; Err: Phys. Rev. D28 (1983) 122Google Scholar
  8. 8.
    P. Aurenche et al.: Nucl. Phys. B286 (1987) 553Google Scholar
  9. 9.
    P. Roudeau et al.: Nucl. Phys. B (Proc. Suppl.) 1B (1988) 33Google Scholar
  10. 10.
    K. Iguchi, A. Niegawa: Z. Phys. C — Particles and Fields 9 (1981) 135Google Scholar
  11. 11.
    I. Kang, C.H. Llewellyn-Smith: Nucl. Phys. B166 (1980) 413Google Scholar
  12. 12.
    M. Fontannaz et al.: Z. Phys. C — Particles and Fields 6 (1980) 241Google Scholar
  13. 13.
    P. Aurenche et al.: Proceedings of the HERA Workshop, Hamburg 1987, p. 561Google Scholar
  14. 14.
    A.C. Bawa et al.: Z. Phys. C — Particles and Fields 50 (1991) 293Google Scholar
  15. 15.
    A.C. Lin: Z. Phys. C — Particles and Fields 32 (1986) 549Google Scholar
  16. 16.
    M. Drees et al.: Phys. Rev. D39 (1986) 169Google Scholar
  17. 17.
    R. Gandhi: Phys. Rev. D44 (1991) RIOGoogle Scholar
  18. 18.
    P. Aurenche et al.: Nucl. Phys. B297 (1988) 661Google Scholar
  19. 19.
    P. Aurenche et al.: Phys. Rev. D39 (1989) 3275Google Scholar
  20. 20.
    P. Aurenche et al.: Phys. Lett. B233 (1989) 517Google Scholar
  21. 21.
    E. Witten: Nucl. Phys. B120 (1977) 189Google Scholar
  22. 22.
    I. Antoniadis, G. Grunberg: Nucl. Phys. B213 (1983) 455Google Scholar
  23. 23.
    M. Glück, E. Reya: Phys. Rev. D28 (1984) 2749Google Scholar
  24. 24.
    G. Rossi: Phys. Rev. D29 (1984) 852Google Scholar
  25. 25.
    G. Curci et al.: Nucl. Phys. B175 (1980) 27Google Scholar
  26. 26.
    W. Furmanski, R. Petronzio: Phys. Lett. B97 (1980) 437Google Scholar
  27. 27.
    M. Fontannaz, E. Pilon: Phys. Rev. D45 (1992); Erratum: Phys. Rev. D46 (1992) 484. The error has also been corrected in: M. Glück et al; Phys. Rev. D45 (1992) 3986Google Scholar
  28. 28.
    M. Glück et al.: Phys. Rev. D30 (1984) 1447Google Scholar
  29. 29.
    M. Drees et al.: Z. Phys. C — Particles and Fields (1985) 587Google Scholar
  30. 30.
    J.H. Da Luz Vieira et al.: Z. Phys. C — Particles and Fields (1991) 241Google Scholar
  31. 31.
    M. Glück, E. Reya: Nucl. Phys. B311 (1988) 519Google Scholar
  32. 32.
    T. Sasaki et al.: Phys. Lett. B252 (1990) 491Google Scholar
  33. 33.
    W. Bartel et al.: Z. Phys. C — Particles and Fields 24 (1984) 231Google Scholar
  34. 34.
    A.C. Benvenuti et al., BCDMS Collas.: Phys. Lett, B237 (1990) 599Google Scholar
  35. 35.
    M. Bonesini et al., WA70 Collab.: Z. Phys. C — Particles and Fields 38 (1988) 371Google Scholar
  36. 36.
    W. Furmanski, R. Petronzio: Z. Phys. C — Particles and Fields 11 (1982) 293Google Scholar
  37. 37.
    P. Aurenche et al.: Phys. Rev. D42 (1990) 1440Google Scholar
  38. 38.
    R.K. Ellis et al.: Nucl. Phys. B152 (1979) 285Google Scholar
  39. 39.
    P. Aurenche et al.: Phys. Lett. B140 (1984) 87Google Scholar
  40. 40.
    F. Aversa et al.: Nucl. Phys. B327 (1989) 105Google Scholar
  41. 41.
    P. Aurenche et al.: Nucl. Phys. B286 (1987) 509; Nucl. Phys. B297 (1988) 661Google Scholar
  42. 42.
    P.M. Stevenson: Phys. Rev. D23 (1981) 2916; Nucl. Phys. B203 (1982) 472Google Scholar
  43. 43.
    P.M. Stevenson, H.D. Politzer: Nucl. Phys. B277 (1986) 758Google Scholar
  44. 44.
    P. Aurenche et al.; preprint LPTHE Orsay 92/30, ENSLAPP-A386/92, J. Ph. Guillet: Proceedings of the 27th Rencontres de Moriond, Les Arcs (1992)Google Scholar

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • P. Aurenche
    • 1
  • P. Chiappetta
    • 2
  • M. Fontannaz
    • 3
  • J. P. Guillet
    • 1
  • E. Pilon
    • 3
  1. 1.Laboratoire de Physique ThéoriqueENSLAPPAnnecy le Vieux CédexFrance
  2. 2.Faculté des Sciences de LuminyCentre de Physique ThéoriqueMarseilleFrance
  3. 3.Laboratoire de Physique Théorique et Hautes EnergiesUniversité Paris XIOrsayFrance

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