A study of b quark fragmentation into B0 and B+ mesons at LEP

The OPAL Collaboration

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58 Scopus citations

Abstract

A study of b quark fragmentation at LEP is presented using a sample of semileptonic B decays containing a fully reconstructed charm meson. The data are compared to several theoretical models for heavy quark fragmentation; the free parameters in these models are fitted and the sensitivity of the model parameters to the rate of P-wave B meson production is studied. The mean scaled energy fraction of B0 and B+ mesons has been determined to be <xE> = 0.695 ± 0.006 ± 0.003 ± 0.007, where the errors are statistical, systematic and model dependence respectively. This result is consistent with previous, less direct measurements from inclusive leptonic B decays. Also presented is a model independent fit to the shape of the energy distribution of weakly decaying B mesons at LEP.

Original languageEnglish
Pages (from-to)93-106
Number of pages14
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume364
Issue number2
DOIs
StatePublished - 14 Dec 1995
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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