- Conference date: 25-30 Aug 1997
- Location: Upton, New York (USA)
We report on measurements of the inclusive production of and mesons in hadronic Z decays, based on 3.2 million hadronic events collected using the L3 detector at LEP. The and mesons are reconstructed through their decays into lepton pairs, while the mesons are reconstructed via the decay mode The measured branching fractions are: In the absence of a clear signal, we set the upper limit at 90% CL:
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