Eur. Phys. J. C (2004) 34: 109-125
https://doi.org/10.1140/epjc/s2004-01708-6Measurement of the forward-backward asymmetries of
https://doi.org/10.1140/epjc/s2004-01708-6
experimental physics
Measurement of the forward-backward asymmetries of 
and 
using prompt leptons
The forward-backward asymmetries of the processes 
and 
were measured from a sample of hadronic 
decays collected by the DELPHI experiment between 1993 and 1995. Enriched samples of 
and 
events were obtained using lifetime information. The tagging of b and c quarks in these samples was based on the semileptonic decay channels 
and 
combined with charge flow information from the hemisphere opposite to the lepton.
Combining the 
and 
measurements presented in this paper with published results based on 1991 and 1992 DELPHI data samples, the following pole asymmetries were obtained: 
The effective value of the weak mixing angle derived from these measurements is 
© Springer-Verlag, 2004
