Hadronisation at Lep

نویسنده

  • ELI BEN-HAIM
چکیده

An overview of recent results from LEP concerning the hadronisation process is presented. Emphasis is placed on the b-quark. The first presented analysis is the measurement of the b-quark fragmentation function. It includes a new, hadronic-model independent method to extract the x-dependence of the non-perturbative QCD component from the measured fragmentation function. This is followed by the results of two analyses on, respectively, production rates of b-excited states and branching fractions of b-quarks to neutral and charged b-hadrons. Multiplicity in the final state is also discussed concerning the difference in multiplicities between b and light quark initiated events, and total multiplicities in three jet events. Finally, recent measurements of ω and η meson production rates are given.

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تاریخ انتشار 2003