Title Measurement of the partial decay width $R^{0}_{b}$ = $\Gamma_{bb}/\Gamma_{had}$ of the Z with the DELPHI detector at LEP Author Abreu, P. Brabandere, de, S. Tomaradze, A. Verbeure, F. [et al.] Faculty/Department Faculty of Sciences. Physics Publication type article Publication 1996 Berlin , 1996 Subject Physics Source (journal) Zeitschrift für Physik : C : particles and fields. - Berlin Volume/pages 70(1996) :4 , p. 531-547 ISSN 0170-9739 ISI A1996UL96700001 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp 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. E-info http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996UL96700001&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996UL96700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:A1996UL96700001&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle