A measurement of the semileptonic branching ratio and a study of inclusive , , () production in Z decays
The ALEPH Collaboration
R. Barate - et al.
Laboratoire de Physique des Particules (LAPP), IN2P3-CNRS, F-74019 Annecy-le-Vieux Cedex, France
Received 1 December 1997 / Published online: 4 August 1998
Inclusive , and () production is investigated using data recorded by the ALEPH detector between 1992 and 1994. The momentum spectra and multiplicities are measured separately in , and decays. The number of protons found in b-hadron decays is used to estimate the fraction of b-baryons in b events to be assuming BR(b-baryon. From an additional study of proton-lepton correlations in b events, the branching ratio is obtained. The ratio is found to be .