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Measurement of the lifetime of charged and neutralD mesons with high resolution silicon strip detectors

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Zeitschrift für Physik C Particles and Fields

Abstract

We have measured the lifetime of charged and neutralD mesons using high resolution silicon strip detectors in the NA11 spectrometer at the CERN SPS. TheD mesons were produced in 200 GeV π− interactions. We obtain a value of\(\tau _{D^ \pm } = \left( {10.6\begin{array}{*{20}c} { + 3.6} \\ { - 2.4} \\ \end{array} } \right) \cdot 10^{ - 13} s\) based on 28, and\(\tau _{D^0 } = \left( {3.7\begin{array}{*{20}c} { + 1.0} \\ { - 0.7} \\ \end{array} } \right) \cdot 10^{ - 13} s\) based on 26 fully reconstructed decays for the lifetime of the charged and the neutralD meson, respectively. For the ratio\(\tau _{D^ \pm } /\tau _{D^0 }\) we find 2.8 +1.1−0.8 .

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References

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Author notes

  1. R. Bailey

    Present address: CERN, CH-1211, Geneva, Switzerland

  2. T. Böhringer

    Present address: Université de Lausanne, Lausanne, Switzerland

  3. S. Gill

    Present address: Apollo Computer S.A., Geneva, Switzerland

  4. C. Hardwick

    Present address: Culham Laboratory, Abingdon, UK

  5. R. Klanner

    Present address: DESY, Hamburg, FRG

  6. H. Seebrunner

    Present address: Fachhochschule Heilbronn, Heilbronn, FRG

  7. A. Wylie

    Present address: Université de Genève, Geneva, Switzerland

Authors and Affiliations

  1. NIKHEF-H, Amsterdam, The Netherlands

    C. Daum, H. Dijkstra, C. Hardwick, W. Hoogland, G. de Rijk, H. G. Tiecke & L. W. Wiggers

  2. University of Bristol, Bristol, UK

    R. S. Gilmore, S. W. L. Kwan, J. Malos & R. J. Tapper

  3. CERN, CH-1211, Geneva, Switzerland

    T. Böhringer, M. Bosman, V. Chabaud, B. D. Hyams, U. Kötz (Visitor from DESY, Hamburg, FRG) & P. Weilhammer

  4. Institute of Nuclear Physics, Cracow, Poland

    Z. Hajduk, M. Rozanska, K. Rybicki & M. Turala

  5. Max Planck Institut für Physik, D-8000, München, Federal Republic of Germany

    E. R. Belau, R. Klanner, G. Lütjens, G. Lutz, W. Männer, E. Neugebauer, H. Palka (Visitor from Institute of Nuclear Physics, Cracow Poland), H. Seebrunner, U. Stierlin, G. Waltermann, A. Wylie & T. Zeludziewicz (Visitor from Institute of Nuclear Physics, Cracow Poland)

  6. Technische Universität München, D-8000, München, Federal Republic of Germany

    J. Kemmer

  7. Rutherford Appleton Laboratory, Chilton, Didcot, UK

    R. Bailey, C. Damerell, S. Gill, A. Gillman, M. Pepe, J. Richardson & F. Wickens

Authors
  1. R. Bailey
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  2. E. R. Belau
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  3. T. Böhringer
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  4. M. Bosman
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  5. V. Chabaud
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  6. C. Damerell
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  7. C. Daum
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  8. H. Dijkstra
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  9. S. Gill
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  10. A. Gillman
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  11. R. S. Gilmore
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  12. Z. Hajduk
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  13. C. Hardwick
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  14. W. Hoogland
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  15. B. D. Hyams
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  16. J. Kemmer
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  17. R. Klanner
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  18. U. Kötz
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  19. S. W. L. Kwan
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  20. G. Lütjens
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  21. G. Lutz
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  22. J. Malos
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  23. W. Männer
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  24. E. Neugebauer
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  25. H. Palka
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  26. M. Pepe
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  27. J. Richardson
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  28. G. de Rijk
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  29. M. Rozanska
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  30. K. Rybicki
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  31. H. Seebrunner
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  32. U. Stierlin
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  33. R. J. Tapper
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  34. H. G. Tiecke
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  35. M. Turala
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  36. G. Waltermann
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  37. P. Weilhammer
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  38. F. Wickens
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  39. L. W. Wiggers
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  40. A. Wylie
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  41. T. Zeludziewicz
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Bailey, R., Belau, E.R., Böhringer, T. et al. Measurement of the lifetime of charged and neutralD mesons with high resolution silicon strip detectors. Z. Phys. C - Particles and Fields 28, 357–363 (1985). https://doi.org/10.1007/BF01413598

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  • DOI: https://doi.org/10.1007/BF01413598

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