D and B Decays to r at LEP

  • Gian Claudio Zucchelli
Conference paper

Abstract

Recent measurements of purely leptonic decay of D s mesons from the DELPHI and the L3 experiments are presented, from which a new value of the decay constant \({f_{{D_s}}}\) , is derived. In the beauty sector, the DELPHI measurement of BR \(b \to \tau {v_\tau }X\) and the L3 search for the purely leptonic decay \({B^ - } \to {\tau ^ - }{\bar v_\tau }\) are reviewed.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • Gian Claudio Zucchelli
    • 1
  1. 1.Stockholm UniversitySweden

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