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Small-size instanton corrections to the τ hadronic width

1993/02/03 by P. Nason, Paolo Nason, Massimo Porrati +1 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/0550-3213(94)90514-2

published as Nucl.Phys. B421 (1994) 518-529 · 13 pages (LaTeX file), CERN-TH.6787/93 NYU-TH.92/11/03

arxiv created 1993/02/03 · openalex publication_date 1994/06/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 αs from the τ hadronic width.

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