Determination of the production rate of D*0 mesons and of the ratio V/(V+P) in Z0→cc¯ decays

Kartvelishvili, Vakhtang (1998) Determination of the production rate of D*0 mesons and of the ratio V/(V+P) in Z0→cc¯ decays. European Physical Journal C: Particles and Fields, 5 (1). pp. 1-17. ISSN 1434-6044

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Abstract

In e+e2212 collisions at centre-of-mass energies around 91 GeV, D*0 mesons have been reconstructed using data collected with the OPAL detector at LEP. The hadronisation fraction has been measured to be f(c→D*0)=0.218±0.054±0.045±0.007, where the errors correspond to the statistical and systematic errors specific to this analysis, and to systematic uncertainties from externally measured branching fractions, respectively. Together with previous OPAL measurements of the hadronisation fractions of other charmed mesons, this value is used to investigate the relative production of observed vector and pseudoscalar charmed mesons in Z0→cc¯Z0→cc¯ decays. The production ratio is determined to be PeffV = V/(V+P)=0.57±0.05. The relative primary production of vector and pseudoscalar mesons, Pvrim, is studied in the context of the production and decay of orbitally excited charmed resonances. The first measurement of the inclusive Ds*+ production rate in hadronic Z0 decays is presented.

Item Type: Journal Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/2200/2201
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 82553
Deposited By: ep_importer_pure
Deposited On: 01 Nov 2016 15:32
Refereed?: Yes
Published?: Published
Last Modified: 29 Jan 2020 03:33
URI: https://eprints.lancs.ac.uk/id/eprint/82553

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