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Highp T hadrons as leading particles in jets produced at the ISR

I. Momentum distribution of secondaries in the trigger jet

  • Published:
Zeitschrift für Physik C Particles and Fields

Abstract

The density of charged particles near a single highp T trigger particle in proton-proton collisions has been studied with the SFM detector at the CERN-ISR. It is shown that:—the secondaries cluster in a jet-like manner about the trigger particle; —the momentum distributions in this trigger jet can be unambiguously separated from the spectator background distributions;—the momentum distributions in this trigger jet can be unambiguously separated from the spectator background distributions;—the momentum component transverse to the jet direction is exponentially damped;—the width of the transverse distributions increases with the momentum component along the jet;—the fractional longitudinal momentum density depends strongly on the trigger transverse momentum and scales with\(x_T = {{2p_T } \mathord{\left/ {\vphantom {{2p_T } {\sqrt s }}} \right. \kern-\nulldelimiterspace} {\sqrt s }}\). All these findings support the hard constituent scattering origin of highp T hadrons.

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Author notes

  1. H. Frehse

    Present address: BBC, Turgi, Switzerland

Authors and Affiliations

  1. Ames Laboratory and Physics Department, Iowa State University, 50010, Ames, IA, USA

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

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

    R. Campanini, G. M. Dallavalle, M. M. Deninno, G. Giacomelli & F. Rimondi

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

    C. D. Buchanan, D. Drijard, F. Fabbri, H. G. Fischer, H. Frehse, W. Geist, M. Heiden, P. G. Innocenti, G. Mornacchi, M. Panter, J. Spahn & O. Ullaland

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

    T. Lohse, M. Panter, K. Rauschnabel, M. Szczekowski & D. Wegener

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

    P. Hanke, W. Herr, E. E. Kluge, T. Nakada & A. Putzer

  6. University and Institute for Nuclear Studies, PL-00-681, Warsaw, Poland

    K. Doroba, R. Gokieli & R. Sosnowski

Authors
  1. A. Breakstone
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  2. C. D. Buchanan
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  3. R. Campanini
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  4. H. B. Crawley
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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. Fabbri
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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. G. Giacomelli
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  15. R. Gokieli
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  16. M. Gorbics
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  17. P. Hanke
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  18. M. Heiden
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  19. W. Herr
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  20. P. G. Innocenti
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  21. E. E. Kluge
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  22. J. W. Lamsa
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  23. T. Lohse
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  24. W. T. Meyer
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  25. G. Mornacchi
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  26. T. Nakada
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  27. M. Panter
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  28. A. Putzer
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  29. K. Rauschnabel
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  30. F. Rimondi
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  31. R. Sosnowski
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  32. J. Spahn
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  33. M. Szczekowski
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  34. O. Ullaland
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  35. D. Wegener
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Breakstone, A., Buchanan, C.D., Campanini, R. et al. Highp T hadrons as leading particles in jets produced at the ISR. Z. Phys. C - Particles and Fields 23, 9–18 (1984). https://doi.org/10.1007/BF01558036

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  • DOI: https://doi.org/10.1007/BF01558036

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