Measurement of the Branching Ratio for D_s->tau nu_tau Decays

Preprint

11 March 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ex/0103012

Abstract

Using about 3.9 million hadronic Z decays from e+e- collisions recorded by the OPAL detector at LEP at centre-of-mass energies near MZ the branching ratio for the decay D_s -> tau nu_tau has been measured to be (7.0 +/- 2.1(stat) +/- 2.0 (syst))%. This result can be used to derive the decay constant of the D_s meson: f(D_s) = 286 +/- 44(stat) +/- 41(syst) MeV.

Keywords

BRANCHING RATIO
NU_TAU DECAYS
COLLISIONS
TAU NU_TAU
STAT
OPAL
D_S

All Related Versions

Version 1, 2001-03-11, ArXiv
Published version: Physics Letters B, 516 (3-4), 236.

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