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- Title
Measurement of the strong coupling α<sub>S</sub> from the four-jet rate in e<sup>+</sup>e<sup>-</sup> annihilation using JADE data.
- Authors
Schieck, J.; Bethke, S.; Biebel, O.; Kluth, S.; Fernández, P. A. M.; Pahl, C.
- Abstract
Data from e+e- annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV are used to study the four-jet event production rate as a function of the Durham jet algorithm’s resolution parameter ycut. The four-jet rate is compared to QCD next-to-leading order calculations including resummation of large logarithms in the next-to-leading logarithmic approximation. The strong coupling measured from the four-jet rate is $ \alpha_{\text{S}}\left(M_{\text{Z}^0}\right)=0.1159\pm0.0004\text{(stat.)}\pm0.0012\text{(exp.)}\pm0.0024\text{(had.)}\pm0.0007\text{(theo.)} $ in agreement with the world average.
- Subjects
POSITRON annihilation; POSITION sensitive particle detectors; DEUTSCHES Elektronen-Synchrotron (Center); HADRON colliders; ALGORITHMS; QUANTUM chromodynamics; MATHEMATICAL analysis
- Publication
European Physical Journal C -- Particles & Fields, 2006, Vol 48, Issue 1, p3
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s2006-02625-4