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Hadronisation at LEP

Abstract : 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 \omega and \eta meson production rates are given.
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Submitted on : Wednesday, July 12, 2006 - 2:16:44 PM
Last modification on : Wednesday, September 16, 2020 - 4:25:15 PM

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E. Ben-Haim. Hadronisation at LEP. XXXVIII Rencontres de Moriond: Electroweak Interactions and Unified Theories, Mar 2003, Les Arcs, France. ⟨in2p3-00085377⟩

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