Journal article
A global determination of at LEP
Abstract
The value of the strong coupling constant,$$\alpha _s (M_{Z^0 } )$$, is determined from a study of 15 different observables in hadronicZ0 and τ decays. The study includes global event shape variables, jet production rates, energy correlations, theZ0 line shape and decay asymmetries and the hadronic branching fraction of τ-leptons. Differences between the αs values from the different observables can be consistently attributed to unknown higher …
Authors
OPAL Collaboration; Acton PD; Alexander G; Allison J; Allport PP; Anderson KJ; Arcelli S; Ashton P; Astbury A; Axen D
Journal
Zeitschrift für Physik C Particles and Fields, Vol. 55, No. 1, pp. 1–24
Publisher
Springer Nature
Publication Date
March 1992
DOI
10.1007/bf01558285
ISSN
0170-9739