Duality violations in hadronic tau decays and the value of alpha_s
classification
✦ hep-ph
hep-exhep-lat
keywords
decaysdualityhadronicviolationsalphaanalysisconstantcoupling
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We discuss the quantitative impact of duality violations on the determination of the strong coupling constant from hadronic tau decays, based on a preliminary analysis of OPAL data.
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