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alpha_S Evolution from 35 GeV to 202 GeV and Flavour Independence

O. Biebel
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Abstract

Determinations of the strong coupling constant alpha_S at centre-of-mass energies of 192 through 202 GeV at LEP are presented. The energy evolution of alpha_S is in agreement with the prediction of QCD. The combined investigation of OPAL and JADE data in the energy range of 35 through 189 GeV yields alpha_S(m_Z)=0.1187^{+0.0034}_{-0.0019}. The strenght of the strong coupling is flavour independent if quark mass effects are taken into account.

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O. Biebel. 2000-05-26. alpha_S Evolution from 35 GeV to 202 GeV and Flavour Independence. https://arxiv.org/abs/hep-ex/0005040

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