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A study of gluon scattering and gluon fragmentation in highp T interactions at the ISR

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Zeitschrift für Physik C Particles and Fields

Abstract

Gluon scattering processes are studied in hadronic highp T events using data obtained with the Split Field Magnet detector (SFM) at the CERN ISR. The experimental set-up allowed the scanning of a wide range of parton energies and scattering angles. It is shown that for positive pions as trigger particles, the parton composition of the recoil jet is correlated with the polar angle and transverse momentum of the triggering pion. Over the kinematical region studied, the recoil jet originates predominantly from scatered gluons, with an increasing prevalence of the gluon component towards forward triggering angles. The variation of the momentum structure of the recoil jet with the trigger angle indicates that the fragmentation function of gluons is softer than that of quarks.

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Author notes

  1. A. Breakstone

    Present address: University of Hawaii, USA

  2. H. Frehse

    Present address: CDC, Zürich, Switzerland

  3. W. Geist & M. Heiden

    Present address: LBL, Berkeley, California, USA

  4. W. Herr & A. Putzer

    Present address: CERN, Geneva, Switzerland

  5. T. Nakada

    Present address: SIN, Villigen, Switzerland

  6. G. P. Siroli

    Present address: University of Maryland, USA

  7. R. Yeung

    Present address: University of California, Los Angeles, USA

Authors and Affiliations

  1. Ames Laboratory and Physics Department, Iowa State University, 50011, Ames, IA, USA

    A. Breakstone, H. B. Crawley, A. Firestone, M. Gorbics, D. Isenhower, J. W. Lamsa & W. T. Meyer

  2. Dipartimento di Fisica dell'Università and INFN, I-40126, Bologna, Italy

    R. Campanini, M. Cuffiani, M. M. Deninno, F. Eabbri, G. Giacomelli, E. Rimondi & G. P. Siroli

  3. European Organization for Nuclear Research, CERN, CH-1211, Geneva 23, Switzerland

    G. M. Dallavalle, D. Drijard, H. G. Fischer, H. Frehse, W. Geist, M. Gorski, M. Heiden, T. Lohse, M. Panter, O. Ullaland & R. Yeung

  4. Institut für Physik der Universität, D-4600, Dortmund, Federal Republic of Germany

    R. Mankel, K. Rauschnabel, M. Schmelling & D. Wegener

  5. Institut für Hochenergiephysik der Universität, D-6900, Heidelberg, Federal Republic of Germany

    H. Flöge, L. Gesswein, P. Hanke, W. Herr, E. E. Kluge, T. Nakada, A. Putzer & B. Rensch

  6. University and Institute for Nuclear Studies, PL-00681, Warsaw, Poland

    K. Doroba, R. Gokieli, R. Sosnowski & M. Szczekowski

Authors
  1. A. Breakstone
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  2. R. Campanini
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  3. H. B. Crawley
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  4. M. Cuffiani
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  5. G. M. Dallavalle
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  6. M. M. Deninno
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  7. K. Doroba
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  8. D. Drijard
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  9. F. Eabbri
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  10. A. Firestone
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  11. H. G. Fischer
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  12. H. Frehse
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  13. W. Geist
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  14. H. Flöge
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  15. L. Gesswein
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  16. G. Giacomelli
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  17. R. Gokieli
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  18. M. Gorbics
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  19. M. Gorski
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  20. P. Hanke
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  21. M. Heiden
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  22. W. Herr
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  23. D. Isenhower
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  24. E. E. Kluge
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  25. J. W. Lamsa
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  26. T. Lohse
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  27. R. Mankel
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  28. W. T. Meyer
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  29. T. Nakada
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  30. M. Panter
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  31. A. Putzer
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  32. K. Rauschnabel
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  33. B. Rensch
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  34. E. Rimondi
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  35. M. Schmelling
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  36. G. P. Siroli
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  37. R. Sosnowski
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  38. M. Szczekowski
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  39. O. Ullaland
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  40. D. Wegener
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  41. R. Yeung
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Additional information

University of Heidelberg, FRG

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Breakstone, A., Campanini, R., Crawley, H.B. et al. A study of gluon scattering and gluon fragmentation in highp T interactions at the ISR. Z. Phys. C - Particles and Fields 33, 475–481 (1987). https://doi.org/10.1007/BF01548259

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  • DOI: https://doi.org/10.1007/BF01548259

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