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Search for neutrinoless τ decays

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Zeitschrift für Physik C Particles and Fields

Abstract

Upper limits on branching ratios for six neutrinoless leptonic, 16 semileptonic, two radiative-leptonic, two radiative-hadronic and three purely hadronic τ decays have been determined. The results improve over previously published ones by about a factor of two. For the first time the lepton and baryon number violating decays\(\tau ^ - \to \bar p\gamma ,\tau ^ - \to \bar p\pi ^0 \) and\(\tau ^ - \to \bar p\eta \) have been investigated. The 90% confidence level (CL) limits for the corresponding branching ratios amount to 2.9×10−4, 6.6×10−4 and 1.3×10−3 respectively.

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Author information

Author notes

  1. S. Nowak & M. Walter

    Present address: IfH, DESY, Zeuthen

  2. D. L. Britton, E. R. F. Hyatt, D. B. MacFarlane, P. M. Patel, P. R. B. Saull & K. Tzamariudaki

    Present address: McGill University, Montreal, Quebec, Canada

  3. C. E. K. Charlesworth, P. Krieger, J. D. Prentice, S. C. Seidel, R. G. Van de Water & T. S. Yoon

    Present address: University of Toronto, Toronto, Ontario, Canada

  4. K. W. Edwards & H. Kapitza

    Present address: Carleton University, Ottawa, Ontario, Canada

Authors and Affiliations

  1. DESY, Hamburg, Federal Republic of Germany

    H. Albrecht, H. Ehrlichmann, T. Hamacher, A. Krüger, A. Nau, A. Nippe, S. Nowak, M. Reidenbach, M. Schäfer, H. Schröder, H. D. Schulz, M. Walter & R. Wurth

  2. Institut für Physik, Universität Dortmund, Federal Republic of Germany

    R. D. Appuhn, C. Hast, G. Herrera, H. Kolanoski, A. Lange, A. Lindner, R. Mankel, M. Schieber, T. Siegmund, B. Spaan, H. Thurn, D. Töpfer, A. Walther & D. Wegener

  3. Physikalisches Institut, Universität Erlangen-Nürnberg, Federal Republic of Germany

    M. Paulini, K. Reim & H. Wegener

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

    R. Mundt, T. Oest & W. Schmidt-Parzefall

  5. Institut für Hochenergiephysik, Universität Heidelberg, Federal Republic of Germany

    W. Funk, J. Stiewe & S. Werner

  6. Max-Planck-Institut für Kernphysik, Heidelberg, Federal Republic of Germany

    K. Ehret, A. Hölscher, W. Hofmann, A. Hüpper, S. Khan, K. T. Knöpfle & J. Spengler

  7. Institute of Particle Physics, Canada

    D. L. Britton, C. E. K. Charlesworth, K. W. Edwards, E. R. F. Hyatt, H. Kapitza, P. Krieger, D. B. MacFarlane, P. M. Patel, J. D. Prentice, P. R. B. Saull, S. C. Seidel, K. Tzamariudaki, R. G. Van de Water & T. S. Yoon

  8. Institut für Experimentelle Kernphysik, Universität Karlsruhe, Federal Republic of Germany

    D. Reßing, M. Schmidtler, M. Schneider, K. R. Schubert, K. Strahl, R. Waldi & S. Weseler

  9. Institut J. Stefan and Oddelek za fiziko, Univerza v Ljubljani, Ljubljana, Slovenia

    G. Kernel, P. Križan,  Križnič, T. Podobnik & T. Živko

  10. Institute of Physics, University of Lund, Sweden

    H. I. Cronström & L. Jönsson

  11. Institute of Theoretical and Experimental Physics, Moscow, Russia

    V. Balagura, I. Belyaev, M. Danilov, A. Droutskoy, A. Golutvin, I. Gorelov, G. Kostina, V. Lubimov, P. Murat, P. Pakhlov, F. Ratnikov, S. Semenov, V. Shibaev, V. Soloshenko, I. Tichomirov & Yu. Zaitsev

Authors
  1. H. Albrecht
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  2. H. Ehrlichmann
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  3. T. Hamacher
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  4. A. Krüger
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  5. A. Nau
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  6. A. Nippe
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  7. S. Nowak
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  8. M. Reidenbach
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  9. M. Schäfer
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  10. H. Schröder
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  11. H. D. Schulz
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  12. M. Walter
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  13. R. Wurth
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  14. R. D. Appuhn
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  15. C. Hast
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  16. G. Herrera
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  17. H. Kolanoski
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  18. A. Lange
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  19. A. Lindner
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  20. R. Mankel
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  21. M. Schieber
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  22. T. Siegmund
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  23. B. Spaan
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  24. H. Thurn
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  25. D. Töpfer
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  26. A. Walther
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  27. D. Wegener
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  28. M. Paulini
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  29. K. Reim
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  30. H. Wegener
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  31. R. Mundt
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  32. T. Oest
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  33. W. Schmidt-Parzefall
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  34. W. Funk
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  35. J. Stiewe
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  36. S. Werner
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  37. K. Ehret
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  38. A. Hölscher
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  39. W. Hofmann
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  40. A. Hüpper
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  41. S. Khan
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  42. K. T. Knöpfle
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  43. J. Spengler
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  44. D. L. Britton
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  45. C. E. K. Charlesworth
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  46. K. W. Edwards
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  47. E. R. F. Hyatt
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  48. H. Kapitza
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  49. P. Krieger
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  50. D. B. MacFarlane
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  51. P. M. Patel
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  52. J. D. Prentice
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  53. P. R. B. Saull
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  54. S. C. Seidel
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  55. K. Tzamariudaki
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  56. R. G. Van de Water
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  57. T. S. Yoon
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  58. D. Reßing
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  59. M. Schmidtler
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  60. M. Schneider
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  61. K. R. Schubert
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  62. K. Strahl
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  63. R. Waldi
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  64. S. Weseler
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  65. G. Kernel
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  66. P. Križan
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  67. Križnič
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  68. T. Podobnik
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  70. H. I. Cronström
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  71. L. Jönsson
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  72. V. Balagura
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  73. I. Belyaev
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  79. V. Lubimov
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  80. P. Murat
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  81. P. Pakhlov
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  82. F. Ratnikov
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  83. S. Semenov
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  84. V. Shibaev
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  85. V. Soloshenko
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  86. I. Tichomirov
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  87. Yu. Zaitsev
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Consortia

ARGUS Collaboration

Additional information

Supported by the German Bundesministerium für Forschung und Technologie, under contract number 054DO 51P

Supported by the German Bundesministerium für Forschung und Technologie, under contract number 054ER 12P

Supported by the German Bundesministerium für Forschung and Technologie, under contract number 055 HD 21P

Supported in part by the Walter C. Sumner Foundation

Supported by the Natural Sciences and Engineering Research Council, Canada

Supported by the German Bundesministerium für Forschung und Technologie, under contract number 054KA17P

Supported by the Department of Science and Technology of the Republic of Slovenia and the Internationales Büro KfA, Jülich

Supported by the Swedish Research Council

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ARGUS Collaboration., Albrecht, H., Ehrlichmann, H. et al. Search for neutrinoless τ decays. Z. Phys. C - Particles and Fields 55, 179–189 (1992). https://doi.org/10.1007/BF01482581

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  • DOI: https://doi.org/10.1007/BF01482581

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