Measurement of the Strong Coupling Constant alpha_S from the Four-Jet Rate in e+e- Annihilation using JADE data
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.
- Publication:
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arXiv e-prints
- Pub Date:
- August 2004
- DOI:
- 10.48550/arXiv.hep-ex/0408122
- arXiv:
- arXiv:hep-ex/0408122
- Bibcode:
- 2004hep.ex....8122S
- Keywords:
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- High Energy Physics - Experiment
- E-Print:
- JADE note 146 submitted as contributed paper to ICHEP 2004