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arXiv · hep-ph/9302211

Small-Size Instanton Corrections to the $τ$ Hadronic Width

P. Nason·M. Porrati
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Abstract

We compute the effect of small-size instanton corrections to current-current correlators, for all combinations of axial, vector, and possibly flavour non-diagonal currents. We apply our result to the hadronic decays of the $τ$ lepton, in order to assess the reliability of the determination of $\as$ from the $τ$ hadronic width.

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P. Nason, M. Porrati. 1993-02-03. Small-Size Instanton Corrections to the $τ$ Hadronic Width. https://doi.org/10.1016/0550-3213(94)90514-2

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