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Measurement of the muon pair asymmetry ine + e − annihilation at\(\sqrt s = 34.7GeV\)

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Zeitschrift für Physik C Particles and Fields

Abstract

The reactione + e −→μ + μ − has been studied with the PLUTO detector at the c.m. energy of 34.7 GeV, based on an integrated luminosity of 46 pb−1. The total cross section agrees with QED predictions, and the corresponding lower limits for theΛ + andΛ − QED cutoff parameters are 267 and 126 GeV respectively (95% c.l.). A forward-backward asymmetry parameterA=−(13.4±3.1±<1)% is observed, which is in agreement with the standard model, as well as with other PETRA results obtained at the same energy.

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Author information

Author notes

  1. A. Eskreys

    Present address: Institute of Nuclear Physics, Cracow, Poland

  2. Ch. Gerke & H. J. Meyer

    Present address: CERN, Geneva, Switzerland

  3. S. T. Xue

    Present address: Institute of High Energy Physics, Academia Sinica, Peking, The People's Republic of China

  4. M. Zachara

    Present address: Institute of Nuclear Physics, Cracow, Poland

  5. M. Krüger

    Present address: Universität Karlsruhe, FRG

  6. R. O. Polvado

    Present address: Northeastern University, Boston, Mass., USA

  7. F. Almeida

    Present address: Instituto de Fisica, Universidad Federal do Rio de Janeiro, Brasil

Authors and Affiliations

  1. I. Phys. Institut der RWTH Aachen, D-5100, Aachen, Federal Republic of Germany

    Ch. Berger, H. Genzel, W. Lackas, J. Pielorz, F. Raupach & W. Wagner

  2. University of Bergen, N-5014, Bergen, Norway

    L. H. Flølo, A. Klovning, E. Lillestöl & J. M. Olsen

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

    J. Bürger, L. Criegee, Ch. Dehne, A. Deuter, A. Eskreys, G. Franke, M. Gaspero, Ch. Gerke, U. Jacobs, G. Knies, B. Lewendel, U. Maurus, J. Meyer, U. Michelsen, K. H. Pape, B. Stella, U. Timm, P. Waloschek, G. G. Winter, S. T. Xue, M. Zachara & W. Zimmermann

  4. University of Glasgow, G128QQ, Glasgow, UK

    P. J. Bussey, S. L. Cartwright, J. B. Dainton, B. T. King, C. Raine, J. M. Scarr, I. O. Skillicorn, K. M. Smith & J. C. Thomson

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

    O. Achterberg, V. Blobel, D. Burkart, K. Diehlmann, H. Kapitza, B. Koppitz, M. Krüger, W. Lührsen, M. Poppe, H. Spitzer & R. van Staa

  6. University of Maryland, 20742, College Park, MD, USA

    C. Y. Chang, R. G. Glasser, R. G. Kellogg, S. J. Maxfield, R. O. Polvado, B. Sechi-Zorn, J. A. Skard, A. Skuja, A. J. Tylka, G. E. Welch & G. T. Zorn

  7. Universität-Gesamthochschule Siegen, D-5900, Siegen, Federal Republic of Germany

    F. Almeida, A. Bäcker, F. Barreiro, S. Brandt, K. Derikum, C. Grupen, H. J. Meyer, H. Müller, B. Neumann, M. Rost, K. Stupperich & G. Zech

  8. Tel-Aviv University, Tel-Aviv, Israel

    G. Alexander, G. Bella, Y. Gnat & J. Grunhaus

  9. Universität-Gesamthochschule Wuppertal, D-5600, Wuppertal, Federal Republic of Germany

    H. J. Daum, H. Junge, K. Kraski, C. Maxeiner, H. Maxeiner, H. Meyer & D. Schmidt

Authors
  1. Ch. Berger
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  2. H. Genzel
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  3. W. Lackas
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  4. J. Pielorz
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  5. F. Raupach
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  6. W. Wagner
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  7. L. H. Flølo
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  8. A. Klovning
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  9. E. Lillestöl
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  10. J. M. Olsen
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  11. J. Bürger
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  12. L. Criegee
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  13. Ch. Dehne
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  14. A. Deuter
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  15. A. Eskreys
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  16. G. Franke
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  17. M. Gaspero
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  18. Ch. Gerke
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  19. U. Jacobs
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  20. G. Knies
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  21. B. Lewendel
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  22. U. Maurus
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  23. J. Meyer
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  24. U. Michelsen
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  25. K. H. Pape
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  26. B. Stella
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  27. U. Timm
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  28. P. Waloschek
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  29. G. G. Winter
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  30. S. T. Xue
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  31. M. Zachara
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  32. W. Zimmermann
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  33. P. J. Bussey
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  34. S. L. Cartwright
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  35. J. B. Dainton
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  36. B. T. King
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  37. C. Raine
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  38. J. M. Scarr
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  39. I. O. Skillicorn
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  40. K. M. Smith
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  41. J. C. Thomson
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  42. O. Achterberg
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  43. V. Blobel
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  44. D. Burkart
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  45. K. Diehlmann
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  46. H. Kapitza
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  47. B. Koppitz
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  48. M. Krüger
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  49. W. Lührsen
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  50. M. Poppe
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  51. H. Spitzer
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  52. R. van Staa
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  53. C. Y. Chang
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  54. R. G. Glasser
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  55. R. G. Kellogg
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  56. S. J. Maxfield
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  57. R. O. Polvado
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  58. B. Sechi-Zorn
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  59. J. A. Skard
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  60. A. Skuja
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  61. A. J. Tylka
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  62. G. E. Welch
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  67. S. Brandt
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  69. C. Grupen
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  70. H. J. Meyer
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  71. H. Müller
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  72. B. Neumann
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  73. M. Rost
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  74. K. Stupperich
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  75. G. Zech
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  76. G. Alexander
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  77. G. Bella
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  78. Y. Gnat
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  79. J. Grunhaus
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  80. H. J. Daum
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  81. H. Junge
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  82. K. Kraski
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  83. C. Maxeiner
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  84. H. Maxeiner
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  85. H. Meyer
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  86. D. Schmidt
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Consortia

PLUTO Collaboration

Additional information

Supported by BMFT, FRG

Partially supported by Norwegian Council for Science and Humanities

Rome University, partially supported by I.N.F.N., Sezione di Roma, Italy

Supported by the U.K. Science and Engineering Research Council

Partially supported by the Department of Energy, USA

Partially supported by the Israeli Academy of Sciences and Humanities — Basic Research Foundation

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PLUTO Collaboration., Berger, C., Genzel, H. et al. Measurement of the muon pair asymmetry ine + e − annihilation at\(\sqrt s = 34.7GeV\) . Z. Phys. C - Particles and Fields 21, 53–57 (1983). https://doi.org/10.1007/BF01648775

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  • DOI: https://doi.org/10.1007/BF01648775

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