Measurement of , and using mesons
The OPAL Collaboration, K. Ackerstaff 8 et al.
8 CERN, European Organisation for Particle Physics, CH-1211 Geneva 23, Switzerland
Received: 18 July 1997
The production rates of mesons in charm and bottom events at centre-of-mass energies of about and the partial width of primary pairs in hadronic decays have been measured at LEP using almost 4.4 million hadronic decays collected with the OPAL detector between 1990 and 1995. Using a combination of several charm quark tagging methods based on fully and partially reconstructed mesons, and a bottom tag based on identified muons and electrons, the hadronisation fractions of charm and bottom quarks into mesons have been found to be and
The fraction of events in hadronic decays, ,is determined to be
In all cases the first error is statistical, and the second one systematic. The last error quoted for is due to external branching ratios.