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Measurement of the strong coupling constant αs for bottom quarks at the Z° resonance

Document type: Articulo

Abstract

We have measured the ratio of the strong coupling constants as for bottom quarks and light quarks at the Z ° resonance, in order to test the flavour independence of the strong interaction. The coupling strength oq has been determined from the fraction of events with three jets, measured for a sample of all hadronic events, and for inclusive muon and electron events. The b purity is evaluated to be 22% for the first data set and 87% for the inclusive lepton sample. We find cq(b)/as(udsc)=l.O0+ 0.05 (stat.) + 0.06 (syst.).

General information

Issue date: 21 de noviembre de 1991
Document language: English
Journal: Physics Letters B; vol. 271, no. 3-4
Origin: Facultad de Ciencias Exactas
ISSN: 0370-2693
Pages: 461-467
xmlui.dri2xhtml.METS-1.0.item-dc-subject: Física ; strong coupling ; bottom quarks ; Z° resonance
Subjects: Ciencias Exactas

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Created: 12 de marzo de 2019
Available since: 12 de marzo de 2019
Please, use one of this identificators(URI) for cite o linking this item:
  • http://sedici.unlp.edu.ar/handle/10915/73074
  • https://doi.org/10.1016/0370-2693(91)90118-A

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