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A reanalysis of branching fractions of charmed mesonsD 0,D + andD + s

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Zeitschrift für Physik C Particles and Fields

Abstract

We combine highly complementary information on branching fractions of charmed mesonsD 0,D + andD + s coming from two experiments both yielding doublecharm samples. The NA 32 experiment provided exclusive branching fractions for channels with at least two charged decay products while a recent Mark III paper provides results on inclusive charm decay properties. The knowledge of channels withK 0's in the former is used to recalculate the charged multiplicity distribution in the latter. We obtain 〈n ch〉=2.25±0.08 forD 0, 〈n ch〉=1.96±0.08 forD + and 〈n ch〉=2.41±0.38 forD + s . In turn the knowledge of the charged multiplicity improves the overall normalization of exclusive branching fractions. This reanalysis yields model-independent results for charmed mesons. In particular we obtain branching fractions for 16D + s decay channels including

$$BF(D_s^ + \to \phi \pi ^ + ) = \left( {4.4\begin{array}{*{20}c} { + 2.3} \\ { - 1.8} \\ \end{array} } \right)\% .$$

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Author information

Author notes

  1. M. Pepé

    Present address: CERN, Geneva, Switzerland

  2. D. P. Kelsey

    Present address: Rutherford Appleton Lab., Chilton, Didcot, UK

  3. V. Castillo

    Present address: IFIC, CSIC and Univ. of Valencia, Valencia, Spain

  4. S. Barlag

    Present address: KNMI, De Bilt, NL

  5. H. Becker

    Present address: Gesamthochschule, Saarbrücken, FRG

  6. T. Böhringer

    Present address: University of Lausanne, Lausanne, CH

  7. R. Klanner

    Present address: DESY, Hamburg, FRG

  8. S. Kwan

    Present address: FNAL, Batavia, USA

  9. E. Neugebauer

    Present address: Universität-GH Siegen, FRG

  10. J. Richardson

    Present address: Univ. of Geneva, Geneva, CH

  11. T. Zeludziewicz

    Present address: University of Melbourne, Melbourne, Australia

Authors and Affiliations

  1. NIKHEF-H, Amsterdam, The Netherlands

    C. Daum, H. G. Tiecke & L. W. Wiggers

  2. Univ. of Bristol, UK

    R. Gilmore, T. Gooch & J. Malos

  3. CERN, Geneva, Switzerland

    T. Böhringer, V. Castillo, V. Chabaud, D. P. Kelsey, S. Kwan, H. J. Seebrunner & P. Weilhammer

  4. Inst. of Nucl. Physcis, Cracow, Poland

    A. Bożek, L. Görlich, Z. Hajduk, H. Pałka, K. Rybicki, M. Witek & T. Zeludziewicz

  5. Max-Planck-Inst. f. Physik, Munich, Federal Republic of Germany

    S. Barlag, H. Becker, M. Bosman, H. Dietl, R. Klanner, B. Lücking, G. Lütjens, G. Lutz, W. Männer, E. Neugebauer, U. Stierlin & G. Waltermann

  6. Rutherford Appleton Lab., Chilton, Didcot, UK

    C. Damerell, A. Gillman, M. Pepé, J. Richardson & F. Wickens

  7. IFIC, CSIC and Univ. of Valencia, Valencia, Spain

    P. Gras & E. Higon

  8. Brunel Univ., Uxbridge, Mddx, UK

    S. Watts

Authors
  1. S. Barlag
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  2. H. Becker
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  3. A. Bożek
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  4. T. Böhringer
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  5. M. Bosman
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  6. V. Castillo
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  7. V. Chabaud
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  8. C. Damerell
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  9. C. Daum
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  10. H. Dietl
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  11. A. Gillman
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  12. R. Gilmore
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  14. L. Görlich
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  15. P. Gras
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  16. Z. Hajduk
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  17. E. Higon
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  18. D. P. Kelsey
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  19. R. Klanner
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  20. S. Kwan
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  21. B. Lücking
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  22. G. Lütjens
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  23. G. Lutz
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  24. J. Malos
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  26. E. Neugebauer
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  27. H. Pałka
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  28. M. Pepé
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  29. J. Richardson
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  30. K. Rybicki
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  31. H. J. Seebrunner
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  32. U. Stierlin
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  33. H. G. Tiecke
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  34. G. Waltermann
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  35. S. Watts
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  36. P. Weilhammer
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  37. F. Wickens
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  38. L. W. Wiggers
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  39. M. Witek
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  40. T. Zeludziewicz
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ACCMOR Collaboration., Barlag, S., Becker, H. et al. A reanalysis of branching fractions of charmed mesonsD 0,D + andD + s . Z. Phys. C - Particles and Fields 55, 383–390 (1992). https://doi.org/10.1007/BF01565095

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  • DOI: https://doi.org/10.1007/BF01565095

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