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Inclusive production of π0-mesons in πp,Kp and γp collisions at energies around 100 GeV

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Zeitschrift für Physik C Particles and Fields

Abstract

Measurements are reported of inclusive production of π0-mesons in the beam fragmentation region in γp, πp andKp collisions. Results include the ratio of π0 production inKp and πp collisions, showing reduced production from fragmentation of theK-meson, and the ratio of π0 production in photon and hadron collisions which shows agreement with modified Vector Meson Dominance at lowP T , and departures at higherP T signalling the onset of direct photon reactions. The pattern of departure from Feynman scaling at highP T points to a contribution of hard parton-parton collisions in both γp and πp collisions.

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Authors and Affiliations

  1. Physikalisches Institut der Universität, W-5300, Bonn, Federal Republic of Germany

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

    D. Barberis, M. Davenport, J. Eades & 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, University of Lancaster, 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 St2, SU-375, Yerevan, Armenia, USSR

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

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  1. R. J. Apsimon
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  2. M. Atkinson
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  3. M. Baake
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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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  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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  52. P. J. Ottewell
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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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  63. A. S. Weigend
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  64. G. W. Wilson
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Omega Photon Collaboration

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Omega Photon Collaboration., Apsimon, R.J., Atkinson, M. et al. Inclusive production of π0-mesons in πp,Kp and γp collisions at energies around 100 GeV. Z. Phys. C - Particles and Fields 52, 397–405 (1991). https://doi.org/10.1007/BF01559433

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  • DOI: https://doi.org/10.1007/BF01559433

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