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Zeitschrift für Physik C Particles and Fields

, Volume 13, Issue 4, pp 277–289 | Cite as

High-p T direct photon production inpp collisions

  • E. Anassontzis
  • A. Karabarbounis
  • C. Kourkoumelis
  • L. K. Resvanis
  • R. B. Palmer
  • D. C. Rahm
  • P. Rehak
  • I. Stumer
  • C. W. Fabian
  • T. Ferbel
  • D. Lissauer
  • I. Mannelli
  • W. Molzon
  • P. Mouzourakis
  • A. Nappi
  • E. Rosso
  • W. Willis
Article

Abstract

Direct photon and neutral-pion production have been measured inpp collisions at the CERN ISR for 30<\(\sqrt s \)<63 GeV and transverse momenta up to 12 GeV/c. The direct photon signal relative to neutral-pion production increases withp T and shows little\(\sqrt s \)-dependence. Results are reported from a variety of running conditions, and details are given on the method of analysis and on the evaluation of systematic errors for the inclusive cross-section of single-photon and neutral-pion production.

Keywords

Field Theory Elementary Particle Quantum Field Theory Systematic Error Transverse Momentum 
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.
    M. Diakonou et al.: Phys. Lett.87B, 292 (1979); M. Diakonou et al.: Phys. Lett.91B, 296 (1980); C. Kourkoumelis et al.: Z. Phys. C — Particles and Fields5, 95 (1980) and references thereinGoogle Scholar
  2. 2.
    C. Fabjan tt al.: Nucl. Instrum. Methods141, 61 (1977); J.H. Cobb et al.: Nucl. Instrum. Methods158, 93 (1979)Google Scholar
  3. 3.
    C. Kourkoumelis: CERN 77-06 (1977); A.J. Lankford: CERN EP Internal Rep. 78-03 (1978)Google Scholar
  4. 4.
    R.L. Ford, W.R. Nelson: SLAC 210, June (1978)Google Scholar
  5. 5.
    C. Kourkoumelis et al.: Phys. Lett.84B, 277 (1979)Google Scholar
  6. 6.
    C. Kourkoumelis et al..: Phys. Lett.91B, 481 (1980)Google Scholar
  7. 7.
    M. Diakonou et al.: Phys. Lett.91B, 301 (1980); C. Kourkoumelis et al. Nucl. Phys.B179, 1 (1981)Google Scholar
  8. 8.
    C. Kourkoumelis et al.: Phys. Lett.89B, 432 (1980)Google Scholar
  9. 9.
    D. Cockerill et al.: Phys. Scr.23, 649 (1981)Google Scholar
  10. 10.
    G.R. Farrar, S.C. Frautschi: Phys. Rev. Lett.36, 1017 (1976)Google Scholar
  11. 11.
    C.O. Escobar: Nucl. Phys.B98, 173 (1975)Google Scholar
  12. 12.
    E.L. Feinberg: Nuovo Cimento34A, 391 (1976)Google Scholar
  13. 13.
    H. Fritzsch, P. Minkowski: Phys. Lett.69B, 316 (1977)Google Scholar
  14. 14.
    R. Rückl et al.: Phys. Rev. D18, 2469 1979Google Scholar
  15. 15.
    F. Halzen, D.M. Scott: Phys. Rev. Lett.40, 1117 (1978)Google Scholar
  16. 16.
    A.P. Contogouris et al.: Phys. Rev. D19, 2607 (1980)Google Scholar
  17. 17.
    F. Halzen, D.M. Scott: Proc. 20th Int. Conf. on High Energy Physics, p. 172. Madison, Wisconsin, 1980. New York: American Institute of Physics 1981Google Scholar
  18. 18.
    L. Cornell, J.F. Owens: Florida State Preprint, FSU-HEP-030780Google Scholar
  19. 19.
    A.P. Contogouris et al.: Phys. Lett.104B, 143 (1981)Google Scholar

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • E. Anassontzis
    • 1
  • A. Karabarbounis
    • 1
  • C. Kourkoumelis
    • 1
  • L. K. Resvanis
    • 1
  • R. B. Palmer
    • 2
  • D. C. Rahm
    • 2
  • P. Rehak
    • 2
  • I. Stumer
    • 2
  • C. W. Fabian
    • 3
  • T. Ferbel
    • 4
  • D. Lissauer
    • 3
  • I. Mannelli
    • 3
  • W. Molzon
    • 3
  • P. Mouzourakis
    • 3
  • A. Nappi
    • 3
  • E. Rosso
    • 3
  • W. Willis
    • 3
  1. 1.University of AthensAthensGreece
  2. 2.Brookhaven National LaboratoryUptonUSA
  3. 3.CERNGenevaSwitzerland
  4. 4.Rochester UniversityRochesterUSA

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