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A study of the point-like interactions of the photon using energy-flows in photo- and hadro-production for incident energies between 65 and 170 GeV

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Zeitschrift für Physik C Particles and Fields

Abstract

Energy-flow distributions for charged hadrons from interactions of photons, pions and kaons on hydrogen are presented as functions of Σp 2T in the event plane. Data cover the range 0.0<Σp 2 T in <10.0(GeV/c)2 and 0.0<x F <1.0 for beam momenta from 65 to 170 GeV/c. The comparisons between photon-and hadron-induced data show an excess of events with larger Σp 2 T in for the photon-induced data. Using the hadron-induced data to parameterise the hadronic behaviour of the photon, the differences between cross sections are used to measure the contribution of the point-like photon interactions. Quantitative calculations of the point-like photon interactions using the Lund Monte-Carlo program LUCIFER, based on QCD, are in agreement with the data.

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Authors and Affiliations

  1. Physikalisches Institut, Universität, Nussallee 12, D-5300, Bonn, Federal Republic of Germany

    M. Baake, B. Diekmann, C. Gapp, F. Gebert, K. Heinloth, A. Holzkamp, S. Holzkamp, H. P. Jakob, D. Joseph, J. Kingler, G. Koersgen, R. Oedingen, E. Paul, H. Rotscheidt, S. Soeldner-Rembold & A. S. Weigend

  2. E.P. Division, CERN, CH-1211, Geneva 23, Switzerland

    D. Barberis, M. Davenport, J. Eades & R. McClatchey

  3. Department of Physics, The University, M139PL, Manchester, England

    M. Atkinson, N. Brook, P. Coyle, B. Dickinson, A. Donnachie, A. T. Doyle, R. J. Ellison, J. M. Foster, R. E. Hughes-Jones, M. Ibbotson, S. D. Kolya, G. D. Lafferty, H. McCann, C. McManus, D. Mercer, P. J. Ottewell, D. Reid, R. J. Thompson & J. Waterhouse

  4. Department of Physics, Lancaster University, LA14YB, Lancaster, England

    T. J. Brodbeck, T. Charity, A. B. Clegg, R. C. W. Henderson, M. T. Hickman, C. Hoeger, N. R. Keemer, D. Newton, A. O'Connor & G. W. Wilson

  5. Rutherford-Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxon, England

    R. J. Apsimon, P. S. Flower, G. Hallewell, J. A. G. Morris, J. V. Morris, C. N. Paterson & P. H. Sharp

  6. Department of Physics, University of Sheffield, S3 7RH, Sheffield, England

    S. Danaher, W. Galbraith, N. A. Thacker & L. Thompson

  7. Yerevan Physics Institute, Markavion St. 2, SU-375036, Yerevan, Armenia, USSR

    L. S. Bagdasarian, S. Danagulian, P. I. Galumian & A. G. Oganesian

Authors
  1. R. J. Apsimon
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  2. M. Atkinson
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  3. M. Baake
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  4. L. S. Bagdasarian
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  5. D. Barberis
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  6. T. J. Brodbeck
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  7. N. Brook
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  8. T. Charity
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  9. A. B. Clegg
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  10. P. Coyle
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  11. S. Danaher
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  12. S. Danagulian
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  13. M. Davenport
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  14. B. Dickinson
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  15. B. Diekmann
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  16. A. Donnachie
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  17. A. T. Doyle
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  18. J. Eades
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  19. R. J. Ellison
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  20. P. S. Flower
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  21. J. M. Foster
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  22. W. Galbraith
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  23. P. I. Galumian
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  24. C. Gapp
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  25. F. Gebert
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  26. G. Hallewell
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  27. K. Heinloth
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  28. R. C. W. Henderson
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  29. M. T. Hickman
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  30. C. Hoeger
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  31. A. Holzkamp
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  32. S. Holzkamp
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  33. R. E. Hughes-Jones
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  34. M. Ibbotson
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  35. H. P. Jakob
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  36. D. Joseph
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  37. N. R. Keemer
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  38. J. Kingler
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  39. G. Koersgen
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  40. S. D. Kolya
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  41. G. D. Lafferty
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  42. H. McCann
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  43. R. McClatchey
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  44. C. McManus
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  45. D. Mercer
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  46. J. A. G. Morris
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  47. J. V. Morris
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  48. D. Newton
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  49. A. O'Connor
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  50. R. Oedingen
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  51. A. G. Oganesian
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  52. P. J. Ottewell
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  53. C. N. Paterson
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  54. E. Paul
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  55. D. Reid
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  56. H. Rotscheidt
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  57. P. H. Sharp
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  58. S. Soeldner-Rembold
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  59. N. A. Thacker
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  60. L. Thompson
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  61. R. J. Thompson
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  62. J. Waterhouse
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  63. A. S. Weigend
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  64. G. W. Wilson
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The OMEGA Photon Collaboration

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The OMEGA Photon Collaboration., Apsimon, R.J., Atkinson, M. et al. A study of the point-like interactions of the photon using energy-flows in photo- and hadro-production for incident energies between 65 and 170 GeV. Z. Phys. C - Particles and Fields 46, 35–43 (1990). https://doi.org/10.1007/BF02440831

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  • DOI: https://doi.org/10.1007/BF02440831

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