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Separation of minimum and higher twist in photoproduction of high-P T mesons

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Zeitschrift für Physik C Particles and Fields

Abstract

Photo- and hadroproduction data in the beam energy range 65–175 GeV have been studied with a view to isolating higher-twist processes in photoproduction from other point-like and hadron-like contributions. With selection of charged tracks havingp T >2 GeV/c and 0.28<x F <0.84 indications of a higher twist contribution have been found at a level that is consistent with QCD expectations.

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Authors and Affiliations

  1. Physikalisches Institut, Universität, Nussallee 12, W-5300, Bonn, Federal Republik of Germany

    M. Baake, B. Diekmann, C. Gapp, F. Gebert, K. Heinloth, K. C. Hoeger, 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. CERN, CH-1211, Geneva 23, Switzerland

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

  3. Department of Physics, The University, M13 9PL, 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. School of Physics and Materials, Lancaster University, LA1 4YB, Lancaster, England

    T. J. Brodbeck, T. Charity, A. B. Clegg, R. C. W. Henderson, M. T. Hickman, 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-375 036, 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. K. 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. G. Ingelman
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  36. H. P. Jakob
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  37. D. Joseph
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  38. N. R. Keemer
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  39. J. Kingler
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  40. G. Koersgen
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  41. S. D. Kolya
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  42. G. D. Lafferty
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  43. H. McCann
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  44. R. McClatchey
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  45. C. McManus
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  46. D. Mercer
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  47. J. A. G. Morris
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  48. J. V. Morris
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  52. A. G. Oganesian
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  53. P. J. Ottewell
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  56. D. Reid
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  59. S. Soeldner-Rembold
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  60. N. A. Thacker
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  61. L. Thompson
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  62. R. J. Thompson
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  64. A. S. Weigend
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  65. G. W. Wilson
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OMEGA Photon Collaboration

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OMEGA Photon Collaboration., Apsimon, R.J., Atkinson, M. et al. Separation of minimum and higher twist in photoproduction of high-P T mesons. Z. Phys. C - Particles and Fields 50, 179–184 (1991). https://doi.org/10.1007/BF01474072

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  • DOI: https://doi.org/10.1007/BF01474072

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