Measurement of the GAMMA(B-B-OVER-BAR)/GAMMA(HAD) branching ratio of thez by double hemisphere tagging
1995 (English)In: Zeitschrift für Physik C Particles and Fields, ISSN 0170-9739, Vol. 65, no 4, 555-568 p.555-568 p.Article in journal (Refereed) Published
Two measurements of Γbbˉ/Γhad are presented. Both measurements use 250000Z decays taken with the DELPHI detector in 1991 and rely mainly on the precision of the microvertex detector. One tagging method is as simple as possible so that background rates can be reliably predicted by simulation. The other one uses a more involved tagging technique and reduces the dependence on simulation as much as possible. Combining both results, Γbbˉ/Γhad is found to be 0.2209±0.0041(stat.)±0.0042(syst.)±0.0018 Γccˉ .
Place, publisher, year, edition, pages
1995. Vol. 65, no 4, 555-568 p.555-568 p.
IdentifiersURN: urn:nbn:se:uu:diva-26868DOI: 10.1007/BF01578666OAI: oai:DiVA.org:uu-26868DiVA: diva2:54762
Collaboration, for complete list of authors see http://dx.doi.org/10.1007/BF015786662008-10-172008-10-172013-10-04Bibliographically approved