Test of the flavour independence of αs

ALEPH Collaboration (1995) Test of the flavour independence of αs. Physics Letters B, 355 (1-2). pp. 381-393. ISSN 0370-2693

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Abstract

Using about 950000 hadronic events collected during 1991 and 1992 with the ALEPH detector, the ratios and have been measured in order to test the flavour independence of the strong coupling constant αs. The analysis is based on event-shape variables using the full hadronic sample, two b-quark samples enriched by lepton tagging and lifetime tagging, and a light-quark sample enriched by lifetime antitagging. The combined results are rb = 1.002±0.023 and ruds = 0.971 ± 0.023.

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
?? NUCLEAR AND HIGH ENERGY PHYSICS ??
ID Code:
64076
Deposited By:
Deposited On:
09 May 2013 14:22
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Sep 2023 00:08