2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 13, 1-13
DOI 10.1007/s100520000260

Measurement of the production rate of charm quark pairs
from gluons in hadronic Z0 decays

The OPAL Collaboration

G.Abbiendi$^{\rm 2}$ - et al.

2 Dipartimento di Fisica dell' Università di Bologna and INFN, 40126 Bologna, Italy

Received: 30 June 1999 / Published online: 3 February 2000 - © Springer-Verlag 2000

Abstract
The rate of secondary charm-quark-pair production has been measured in 4.4 million hadronic Z0 decays collected by OPAL. By selecting events with three jets and tagging charmed hadrons in the gluon jet candidate using leptons and $\mathrm{ D^{\star\pm}}$ mesons, the average number of secondary charm-quark pairs per hadronic event is found to be (3.20$\pm$0.21$\pm$0.38) $\times10^{-2}$.


Copyright Società Italiana di Fisica, Springer-Verlag 2000