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arXiv · hep-ph/9412273

QCD Predictions for the Tau Hadronic Width: Determination of alpha_s(M_τ^2)

A. Pich
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Abstract

The total $τ$ hadronic width can be accurately calculated using analyticity and the operator product expansion. The theoretical analysis of this observable is updated to include all available perturbative and non-perturbative corrections. The experimental determination of $α_s(M_τ^2)$ and its actual uncertainties are discussed.

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A. Pich. 1994-12-12. QCD Predictions for the Tau Hadronic Width: Determination of alpha_s(M_τ^2). https://doi.org/10.1016/0920-5632(95)00097-s

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