Measurement of the Strong Coupling Constant alpha_S from the Four-Jet Rate in e+e- Annihilation using JADE data
High Energy Physics - Experiment
2007-05-23 v1
Abstract
Data from e+e- annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 GeV were used to study the four-jet rate as a function of the Durham algorithm's resolution parameter y_cut. The four-jet rate was compared to a QCD NLO order calculations including NLLA resummation of large logarithms. The strong coupling constant measured from the four-jet rate is alpha_S(M_Z) = 0.1169 +/- 0.0004 (stat) +/- 0.0012 (expt) +/- 0.0021 (had) +/- 0.0007 (theo), alpha_S(M_Z) = 0.1169 +/- 0.0026 (total error) in agreement with the world average.
Keywords
Cite
@article{arxiv.hep-ex/0408122,
title = {Measurement of the Strong Coupling Constant alpha_S from the Four-Jet Rate in e+e- Annihilation using JADE data},
author = {J. Schieck and S. Kluth and S. Bethke and P. A. Movilla Fernandez and C. Pahl and the JADE Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0408122},
year = {2007}
}
Comments
JADE note 146 submitted as contributed paper to ICHEP 2004