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

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

1993-02-03

arxiv.org/abs/hep-ph/9302211v1

Nucl.Phys. B421 (1994) 518-529

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages (LaTeX file), CERN-TH.6787/93 NYU-TH.92/11/03

Scientific paper

10.1016/0550-3213(94)90514-2

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 $\tau$
lepton, in order to assess the reliability of the determination of $\as$ from
the $\tau$ hadronic width.

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