Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Determination of semi-muonic branching ratios and fragmentation functions of heavy quarks ine + e − annihilation at ⟨s√⟩ =34.6 GeV
AU - Bartel, W.
AU - Finch, Alexander
AU - JADE Collaboration
PY - 1987
Y1 - 1987
N2 - Muon inclusive multihadronic final states ine + e − annihilation at ⟨s√⟩ =34.6 GeV, collected by the JADE detector at PETRA, have been analysed in terms of the semi-muonic branching ratios and fragmentation functions of heavy quarks. Defining the fragmentation variable, ζ, as z=(E+p∥)hadron(E+p)quark we find =(77±3±5)% and =(86±4±5)%. The corresponding semi-muonic branching ratios are measured to be BR(c→μv μ X)=7.8±1.5±2)% and BR (b→μv μ X)=(11.7±1.6±1.5)%. Defining ζ as xE=EhadronEbeam we observe an expected softening effect in the fragmentation due mainly to gluon emission, but find that this definition leads to semi-muonic branching ratiomeasurements which are strongly affected by uncertainties in the fragmentation process and the WCD calculation.
AB - Muon inclusive multihadronic final states ine + e − annihilation at ⟨s√⟩ =34.6 GeV, collected by the JADE detector at PETRA, have been analysed in terms of the semi-muonic branching ratios and fragmentation functions of heavy quarks. Defining the fragmentation variable, ζ, as z=(E+p∥)hadron(E+p)quark we find =(77±3±5)% and =(86±4±5)%. The corresponding semi-muonic branching ratios are measured to be BR(c→μv μ X)=7.8±1.5±2)% and BR (b→μv μ X)=(11.7±1.6±1.5)%. Defining ζ as xE=EhadronEbeam we observe an expected softening effect in the fragmentation due mainly to gluon emission, but find that this definition leads to semi-muonic branching ratiomeasurements which are strongly affected by uncertainties in the fragmentation process and the WCD calculation.
U2 - 10.1007/BF01552539
DO - 10.1007/BF01552539
M3 - Journal article
VL - 33
SP - 339
EP - 349
JO - Zeitschrift für Physik C Particles and Fields
JF - Zeitschrift für Physik C Particles and Fields
SN - 0170-9739
IS - 3
ER -