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Inclusive γ and π0 production ine + e − annihilation at 14, 22 and 34 GeV c.m. energy

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Zeitschrift für Physik C Particles and Fields

Abstract

We have measured the scale invariant inclusive photon and π0 cross sections atW=14, 22 and 34 GeV. A comparison with π± data shows no significant difference between neutral and charged pion production. Comparing the integrated cross sections in thex range 0.15<x<1.0 we observe a considerable decrease from 14 GeV to 34 GeV with a statistical significance of 1.5 standard deviations. This is compatible with the expectations for scaling violations from QCD.

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Author notes

  1. G. Schmidt & J. H. Field

    Present address: Deutsches Elektronen-Synchrotron, DESY, D-2000, Hamburg, Germany

  2. M. -J. Schachter

    Present address: SCS, Hamburg, FRG

  3. U. Kruse

    Present address: University of Illinois, Urbana, USA

Authors and Affiliations

  1. Deutsches Elektronen-Synchrotron, DESY, D-2000, Hamburg, Germany

    H. J. Behrend, H. Fenner, M. -J. Schachter, V. Schröder & H. Sindt

  2. Kernforschungszentrum Karlsruhe and Universität Karlsruhe, D-7500, Karlsruhe, Germany

    G. D'Agostini, W. -D. Apel, J. Engler, G. Flügge, D. C. Fries, W. Fues, K. Gamerdinger, G. Hopp, H. Küster, H. Müller, H. Randoll, G. Schmidt & H. Schneider

  3. Max-Planck-Institut für Physik und Astrophysik, D-8000, München, Germany

    W. de Boer, G. Buschhorn, G. Grindhammer, P. Grosse-Wiesmann, B. Gunderson, C. Kiesling, R. Kotthaus, U. Kruse, H. Lierl, D. Lüers, H. Oberlack & P. Schacht

  4. Laboratoire de l'Accélérateur Linéaire, F-91405, Orsay, France

    P. Colas, A. Cordier, M. Davier, D. Fournier, J. F. Grivaz, J. Haissinski, V. Journé, F. Laplanche, F. Le Diberder, U. Mallik & J. -J. Veillet

  5. Laboratoire de la Physique Nucléaire et Hautes Energies, University of Paris, F-75230, Paris, France

    J. H. Field, R. George, M. Goldberg, B. Grossetête, O. Hamon, F. Kapusta, F. Kovacs, G. London, L. Poggioli & M. Rivoal

  6. Centre d'Etudes Nucléaires, Saclay, F-9110, Gif-sur-Yvette, France

    R. Aleksan, J. Bouchez, G. Carnesecchi, G. Cozzika, Y. Ducros, A. Gaidot, Y. Lavagne, J. Pamela, J. P. Pansart & F. Pierre

Authors
  1. H. J. Behrend
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  2. H. Fenner
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  3. M. -J. Schachter
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  4. V. Schröder
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  5. H. Sindt
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  6. G. D'Agostini
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  7. W. -D. Apel
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  8. J. Engler
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  9. G. Flügge
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  10. D. C. Fries
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  11. W. Fues
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  12. K. Gamerdinger
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  13. G. Hopp
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  14. H. Küster
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  15. H. Müller
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  16. H. Randoll
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  17. G. Schmidt
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  18. H. Schneider
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  19. W. de Boer
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  20. G. Buschhorn
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  21. G. Grindhammer
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  22. P. Grosse-Wiesmann
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  23. B. Gunderson
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  24. C. Kiesling
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  25. R. Kotthaus
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  26. U. Kruse
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  28. D. Lüers
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  29. H. Oberlack
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  30. P. Schacht
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  31. P. Colas
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  32. A. Cordier
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  33. M. Davier
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  34. D. Fournier
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  35. J. F. Grivaz
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  36. J. Haissinski
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  37. V. Journé
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  38. F. Laplanche
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  39. F. Le Diberder
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  40. U. Mallik
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  41. J. -J. Veillet
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  42. J. H. Field
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  43. R. George
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  44. M. Goldberg
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  45. B. Grossetête
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  46. O. Hamon
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  47. F. Kapusta
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  48. F. Kovacs
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  49. G. London
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  50. L. Poggioli
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  51. M. Rivoal
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  52. R. Aleksan
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  53. J. Bouchez
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  54. G. Carnesecchi
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  55. G. Cozzika
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  56. Y. Ducros
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  57. A. Gaidot
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  58. Y. Lavagne
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  59. J. Pamela
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  60. J. P. Pansart
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  61. F. Pierre
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CELLO-Collaboration., Behrend, H.J., Fenner, H. et al. Inclusive γ and π0 production ine + e − annihilation at 14, 22 and 34 GeV c.m. energy. Z. Phys. C - Particles and Fields 20, 207–212 (1983). https://doi.org/10.1007/BF01574852

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  • DOI: https://doi.org/10.1007/BF01574852

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