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A measurement of the gluon splitting rate into c(c)over-bar pairs in hadronic Z decays

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Delaere, Christophe [UCL] Lemaitre, Vincent [UCL]

The rate of gluon splitting into cc pairs in hadronic Z decays is measured using the data sample collected by ALEPH from 1991 to 1995. The selection is based on the identification of leptons (electrons and muons) originating from semileptonic charm decays, and on the topological properties of signal events. The result derived from the selected sample is g(cc) = (3.26 +/- 0.23(stat) +/- 0.42(syst))%. (C) 2003 Published by Elsevier Science B.V.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 2003
Language Anglais
Journal information "Physics Letters B" - Vol. 561, no. 3-4, p. 213-224 (2003)
Peer reviewed yes
Publisher ELSEVIER SCIENCE BV (AMSTERDAM, NETHERLANDS )
issn 0370-2693
Publication status Publié
Affiliation UCL - SST/IRMP - Institut de recherche en mathématique et physique
Keywords 1221
Links
Bibliographic reference Delaere, Christophe ; Lemaitre, Vincent ; et. al. A measurement of the gluon splitting rate into c(c)over-bar pairs in hadronic Z decays . In: Physics Letters B, Vol. 561, no. 3-4, p. 213-224 (2003)
Permanent URL http://hdl.handle.net/2078.1/71940