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Double parton scattering inpp collisions at\(\sqrt s = 63\) GeV

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Zeitschrift für Physik C Particles and Fields

Abstract

In a study ofpp collisions at\(\sqrt s = 63\) GeV with more than 29 GeV total transverse energy emitted into 1.8 units of rapidity in the central region, we have extracted a sample of 4-jet events and compared it with models of the two sources of 4-jet production: double bremsstrahlung and double parton scattering. The data cannot be described by bremsstrahlung alone, and we extract the fraction of 4-jet events attributed to double parton scattering for various definitions of the 4-jet sample. We determine the double parton scattering/2-jet yield ratio, and this leads to a determination of the proton radius. We discuss the implications of our observations for the general understanding of high-ΣE T events.

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Author information

Authors and Affiliations

  1. Brookhaven National Laboratory, 973, Upton, NY, USA

    L. Olsen

  2. University of Cambridge, CB3 9EW, UK

    J. R. Carter

  3. CERN, CH-1211, Geneva 23, Switzerland

    T. Åkesson, H. Breuker, C. W. Fabjan, U. Goerlach, S. Katsanevas, A. Markou, B. S. Nielsen, J. Schukraft, H. Specht & W. J. Willis

  4. Niels Bohr Institute, University of Copenhagen, DK-2100, Copenhagen, Denmark

    H. Bøggild, O. Botner, E. Dahl-Jensen, I. Dahl-Jensen, G. Damgaard, K. H. Hansen, N. J. Kjaer, R. Møller, K. Spang & H. H. Thodberg

  5. University of Lund, S-22 362, Lund, Sweden

    S. Almehed, V. Hedberg, G. Jarlskog, K. Kulka, B. Lörstad & U. Mjörnmark

  6. University of Pennsylvania, 19104, Philadelphia, PA, USA

    E. Vella

  7. University of Pittsburgh, 15260, PA, USA

    Y. Choi, W. E. Cleland, R. Kroeger, M. Sullivan & J. A. Thompson

  8. Queen Mary College, E1 4NS, London, UK

    A. A. Carter

  9. Rutherford Appleton Laboratory, OX11 OQX, Didcot, UK

    M. G. Albrow, N. A. McCubbin & J. Williamson

  10. University of Tel Aviv, 69978, Tel Aviv, Israel

    O. Benary, S. Dagan, D. Lissauer & Y. Oren

Authors
  1. T. Åkesson
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  2. M. G. Albrow
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  3. S. Almehed
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  4. O. Benary
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  5. H. Bøggild
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  6. O. Botner
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  7. H. Breuker
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  8. A. A. Carter
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  9. J. R. Carter
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  10. Y. Choi
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  11. W. E. Cleland
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  12. S. Dagan
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  13. E. Dahl-Jensen
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  14. I. Dahl-Jensen
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  15. G. Damgaard
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  16. C. W. Fabjan
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  17. U. Goerlach
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  18. K. H. Hansen
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  19. V. Hedberg
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  20. G. Jarlskog
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  21. S. Katsanevas
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  22. N. J. Kjaer
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  23. R. Kroeger
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  24. K. Kulka
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  25. D. Lissauer
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  26. B. Lörstad
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  27. A. Markou
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  28. N. A. McCubbin
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  29. U. Mjörnmark
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  30. R. Møller
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  31. B. S. Nielsen
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  32. L. Olsen
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  33. Y. Oren
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  34. J. Schukraft
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  35. K. Spang
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  36. H. Specht
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  37. M. Sullivan
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  38. H. H. Thodberg
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  39. J. A. Thompson
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  40. E. Vella
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  41. J. Williamson
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  42. W. J. Willis
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The Axial Field Spectrometer Collaboration

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The Axial Field Spectrometer Collaboration., Åkesson, T., Albrow, M.G. et al. Double parton scattering inpp collisions at\(\sqrt s = 63\) GeV. Z. Phys. C - Particles and Fields 34, 163–174 (1987). https://doi.org/10.1007/BF01566757

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  • DOI: https://doi.org/10.1007/BF01566757

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