Measurement of alpha_S in e+e- collisions at LEP and JADE

Details Measurement of alpha_S in e+e- collisions at LEP and JADE Measurement of alpha_S in e+e- collisions at LEP and JADE

2006-10-06

arxiv.org/abs/hep-ex/0610013v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 3 figures, contributed to the Proceedings of ICHEP2006

Scientific paper

Data from e+e- annihilation into hadrons collected by the JADE, the L3 and the OPAL experiment at centre-of-mass energies between 14 GeV and 209 GeV are used to determine the strong coupling alpha_S. Observables in leading order sensitive to alpha_S as well as alpha_S**2 are used. The evolution of alpha_S with respect to the centre-of-mass energy as predicted by QCD is studied and confirmed with high precision. All measurements of alpha_S are consistent with the current world average.

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