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Small-size instanton corrections to the $\tau$ hadronic width
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 $\a...
Autores principales: | Nason, Paolo, Porrati, Massimo |
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Lenguaje: | eng |
Publicado: |
1994
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/0550-3213(94)90514-2 http://cds.cern.ch/record/245502 |
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