Publication
Title
Measurement of the partial decay width $R^{0}_{b}$ = $\Gamma_{bb}/\Gamma_{had}$ of the Z with the DELPHI detector at LEP
Author
Abstract
 The partial decay width of the Z to quark pairs has been measured by the DELPHI detector at LEP. B-hadrons, containing b-quarks, were tagged by several methods using tracks with large impact parameters to the primary vertex complemented sometimes by event shape variables or using leptons with high transverse momentum relative to the hadron, In order to reduce the systematic uncertainties, in all methods the b-tagging efficiency has been extracted directly from the data. Combining all methods, the value: Gamma()/Gamma(had) = 0.2216 +/- 0.0016(stat.) +/- 0.0021(syst.) was found, where the production fraction was fixed to its Standard Model value.
Language
English
Source (journal)
Zeitschrift für Physik : C : particles and fields. - Berlin
Publication
Berlin : 1996
ISSN
0170-9739
Volume/pages
70:4(1996), p. 531-547
ISI
A1996UL96700001
Full text (Publisher's DOI)
UAntwerpen
 Faculty/Department Research group Publication type Subject Affiliation Publications with a UAntwerp address