Small-Size Instanton Corrections to the $Ï$ Hadronic Width
arXiv:hep-ph/9302211 · doi:10.1016/0550-3213(94)90514-2
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 $Ï$ lepton, in order to assess the reliability of the determination of $\as$ from the $Ï$ hadronic width.
13 pages (LaTeX file), CERN-TH.6787/93 NYU-TH.92/11/03