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arXiv · hep-ex/9708037

Determinations of alpha_s using JADE data of e^+e^- Annihilations at sqrt{s} = 22 to 44 GeV

P. A. Movilla Fernandez
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Abstract

Data recorded by the JADE experiment at the PETRA e^+e^- collider were used to measure distributions of new event shape observables. The distributions were compared with resummed QCD calulations (O(alpha_s^2)+NLLA), and the strong coupling constant alpha_s was determined at \sqrt{s}= 22, 35 and 44 GeV. The results are in agreement with previous combined results of PETRA but have smaller uncertainties. Together with corresponding data from LEP, the energy dependence of alpha_s is significantly tested and is found to be in good agreement with the QCD expectation.

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P. A. Movilla Fernandez. 1997-08-26. Determinations of alpha_s using JADE data of e^+e^- Annihilations at sqrt{s} = 22 to 44 GeV. https://doi.org/10.1016/s0920-5632(97)01026-8

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