Hadronisation at LEP
Abstract
Description
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 ωand ηmeson production rates are given.
Talk given at XXXVIII Rencontres de Moriond, March 23rd - 29th, 2003
Talk given at XXXVIII Rencontres de Moriond, March 23rd - 29th, 2003