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Measurements of energy correlations ine + e −→hadrons

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Zeitschrift für Physik C Particles and Fields

Abstract

Energy-energy-correlations (EEC) have been measured with the JADE detector at c.m. energies of 14 GeV, 22 GeV and in the region 29 GeV<E cm<36 GeV. Corrected results are presented of EEC and their asymmetry, which can be directly compared to theoretical predictions. At 〈E cm〉=34 GeV a comparison with second order QCD predictions yields good agreement for the string model fragmentation resulting in a value of the strong coupling constant α s =0.165±0.01 (stat.). The independent fragmentation models, which yield values of α s between 0.10 and 0.15 depending on the treatment of energy and momentum conservation and of the gluon splitting, do not provide a satisfactory description of the data over the full angular range.

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Author notes

  1. D. Cords & E. Elsen

    Present address: SLAC, California, USA

  2. H. Junge & D. Schmidt

    Present address: Universität-Gesamthochschule Wuppertal, Germany

  3. P. Laurikainen & E. Pietarinen

    Present address: University Helsinki, Helsinki, Finland

  4. R. D. Heuer

    Present address: CERN, Geneva, Switzerland

Authors and Affiliations

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

    W. Bartel, L. Becker, C. Bowdery (European Science Exchange Fellow), D. Cords, R. Felst, D. Haidt, H. Junge, G. Knies, H. Krehbiel, P. Laurikainen, R. Meinke, K. Meissner, B. Naroska, J. Olsson, E. Pietarinen, D. Schmidt, P. Steffen, P. Warming & M. Zachara

  2. II. Institut für Experimentalphysik der Universität, D-2000, Hamburg, Federal Republic of Germany

    G. Dietrich, E. Elsen, G. Heinzelmann, H. Kado, M. Kuhlen, T. Mashimo, K. Meier, A. Petersen, U. Schneekloth & G. Weber

  3. Physikalisches Institut der Universität, D-6900, Heidelberg, Federal Republic of Germany

    K. Ambrus, S. Bethke, A. Dieckmann, J. Heintze, K. H. Hellenbrand, R. D. Heuer, S. Komaniya, J. von Krogh, P. Lennert, H. Matsumura, H. Rieseberg, J. Spitzer & A. Wagner

  4. University, LA1 4YB, Lancaster, England

    A. Finch, F. Foster, G. Hughes, T. Nozaki & J. Nye

  5. University, M13 9PL, Manchester, England

    J. Allison, J. Baines, A. H. Ball, R. J. Barlow, J. Chrin, I. P. Duerdoth, T. Greenshaw, P. Hill, F. K. Loebinger, A. A. Macbeth, H. McCann, H. E. Mills, P. G. Murphy & K. Stephens

  6. University of Maryland, 20742, MD, USA

    R. G. Glasser, B. Sechi-Zorn, J. A. J. Skard, S. Wagner & G. T. Zorn

  7. Rutherford Appleton Laboratory, Chilton, OX11 0QX, Didcot, Oxon, England

    S. L. Cartwright, D. Clarke, R. Marshall & J. B. Whittaker

  8. Lab. of Int. Coll. on Elementary Particle Physics and Department of Physics, University of Tokyo, Japan

    J. Kanzaki, T. Kawamoto, T. Kobayashi, M. Koshiba, M. Minowa, M. Nozaki, S. Orito, A. Sato, H. Takeda, T. Takeshita, Y. Totsuka & S. Yamada

Authors
  1. W. Bartel
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  2. L. Becker
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  3. C. Bowdery
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  7. H. Junge
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  8. G. Knies
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  9. H. Krehbiel
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  19. M. Zachara
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  20. G. Dietrich
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  21. E. Elsen
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  22. G. Heinzelmann
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  23. H. Kado
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  29. G. Weber
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  30. K. Ambrus
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  31. S. Bethke
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  32. A. Dieckmann
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JADE Collaboration., Bartel, W., Becker, L. et al. Measurements of energy correlations ine + e −→hadrons. Z. Phys. C - Particles and Fields 25, 231–239 (1984). https://doi.org/10.1007/BF01547922

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  • DOI: https://doi.org/10.1007/BF01547922

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