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Final results on muon and tau pair production by the JADE Collaboration at PETRA

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Zeitschrift für Physik C Particles and Fields

Abstract

The cross-sections and the forward-backward charge asymmetries of muon and tau pairs produced ine + e − collisions at\(\sqrt s = 35 GeV\) have been measured by the JADE Collaboration. The cross-sections,\(\sigma _\mu (\sqrt s = GeV) = 69.79 \pm 1.35 \pm 1.40 pb\) and\(\sigma _\mu (\sqrt s = GeV) = 71.72 \pm 1.48 \pm 1.61 pb\), are in agreement with the QED α3 prediction. The charge asymmetries areA μ=−(9.9±1.5±0.5)% andA τ=−(8.1±2.0±0.6)% in agreement with the value −9.2% predicted by the standard model, usingM Z=91.0 GeV and sin2θ W =0.230.

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Author notes

  1. J. Hagemann

    Present address: Deutsches Elektronen-Synchrotron DESY, Hamburg, Federal Republic of Germany

  2. D. D. Pitzl

    Present address: , Santa Cruz, California, USA

  3. K. Ambrus

    Present address: MBB, Munich, Germany

  4. S. L. Cartwright

    Present address: Sheffield University, UK

  5. K. H. Hellenbrand

    Present address: Universität des Saarlandes, Saarbrücken, FRG

  6. H. Kado

    Present address: Bayer AG, Brunsbüttel, FRG

  7. S. Komamiya

    Present address: SLAC, California, USA

  8. M. Kuhlen

    Present address: CALTECH, California, USA

  9. N. Magnussen & D. Schmidt

    Present address: Universität-Gesamthochschule Wuppertal, Wuppertal, FRG

  10. J. A. J. Skard

    Present address: ST Systems Corporation, Lanham, Maryland, USA

  11. J. M. Nye

    Present address: ESTEC, Noordwijk, The Netherlands

  12. P. Hill

    Present address: DESY, Hamburg, FRG

  13. C. Kleinwort

    Present address: CERN, Geneva, Switzerland

  14. U. Schneekloth

    Present address: MIT, Cambridge, USA

  15. R. Ramcke

    Present address: Rameke Datentechnik GmbH, Hamburg, FRG

Authors and Affiliations

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

    W. Bartel, R. Felst, D. Haidt, H. Kado, G. Knies, H. Krehbiel, N. Magnussen, R. Meinke, J. Olsson, R. Ramcke, D. Schmidt & P. Steffen

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

    S. Hegner, B. Naroska, F. Schroth, T. Greenshaw, J. Hagemann, G. Heinzelmann, C. Kleinwort, M. Kuhlen, F. Ould-Saada, D. D. Pitzl, U. Schneekloth & G. Weber

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

    K. Ambrus, S. Bethke, A. Dieckmann, G. Eckerlin, E. Elsen, J. Heintze, K. H. Hellenbrand, S. Komamiya, J. v. Krogh, H. Rieseberg, H. von der Schmitt, L. Smolik, J. Spitzer, A. Wagner & M. Zimmer

  4. University of Lancaster, Lancaster, England

    C. K. Bowdery, A. J. Finch, F. Foster, G. Hughes, J. M. Nye & I. W. Walker

  5. University of Manchester, manchester, England

    J. Allison, R. J. Barlow, J. Chrin, I. P. Duerdoth, F. K. Loebinger, A. A. Macbeth, P. G. Murphy & K. Stephens

  6. University of Maryland, College Park, MD, USA

    P. Hill, J. A. J. Skard & G. T. Zorn

  7. Rutherford Appleton Laboratory, Chilton, Didcot, England

    S. L. Cartwright, D. Clarke, R. Marshall & R. P. Middleton

  8. International Center for Elementary Particle Physics, University of Tokyo, Tokyo, Japan

    K. Kawagoe, M. Nozaki & H. Takeda

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  1. S. Hegner
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JADE Collaboration., Hegner, S., Naroska, B. et al. Final results on muon and tau pair production by the JADE Collaboration at PETRA. Z. Phys. C - Particles and Fields 46, 547–553 (1990). https://doi.org/10.1007/BF01560255

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  • DOI: https://doi.org/10.1007/BF01560255

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