ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The production of prompt muons ine + e − annihilation has been studied at centre of mass energies near 34.5 GeV. The measured semi-muonic branching ratios ofb andc quarks areB(b»Xμv) =0.117±0.028±0.01 andB(c→Xμv)=0.082 ±0.012 a−0.01 +0.02 . The fragmentation functions of heavy quarks are hard, 〈z b〉=0.85 a−0.12–0.07 +0.10+0.02 and 〈z c〉 =0.77 a−0.07–0.11 +0.05+0.03 . Limits have been set on flavour changing neutral current decays:B(b→Xµ + µ −) 〈0.02 andB(b→Xµ + µ − (95% confidence level).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01575783