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 harmonic decays of the τ lepton, in order to assess the reliability of the determination of α s from the τ hadronic width
Nason, P., Porrati, M. (1994). Small-size instanton corrections to the τ hadronic width. NUCLEAR PHYSICS. B, 421(3), 518-529 [10.1016/0550-3213(94)90514-2].
Small-size instanton corrections to the τ hadronic width
Nason, P;
1994
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 harmonic decays of the τ lepton, in order to assess the reliability of the determination of α s from the τ hadronic width
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