Small-size instanton corrections to the τ hadronic width

Paolo Nason; Massimo Porrati

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

Small-size instanton corrections to the τ hadronic width

Paolo Nason, Massimo Porrati

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Pages (from-to)	518-529
Number of pages	12
Journal	Nuclear Physics, Section B
Volume	421
Issue number	3
DOIs	https://doi.org/10.1016/0550-3213(94)90514-2
State	Published - Jun 27 1994

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0550-3213(94)90514-2

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title = "Small-size instanton corrections to the τ hadronic width",

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.",

author = "Paolo Nason and Massimo Porrati",

year = "1994",

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doi = "10.1016/0550-3213(94)90514-2",

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AU - Porrati, Massimo

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AB - 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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EP - 529

JO - Nuclear Physics B

JF - Nuclear Physics B

SN - 0550-3213

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Small-size instanton corrections to the τ hadronic width

Abstract

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