Violations of quark-hadron duality in low-energy determinations of α s

Violations of quark-hadron duality in low-energy determinations of α s

Abstract Using the spectral functions measured in τ decays, we investigate the actual numerical impact of duality violations on the extraction of the strong coupling. These effects are tiny in the standard α s ( m τ 2 $$ {m}_{\tau}^2 $$ ) determinations from integrated distributions of the hadronic...

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Bibliographic Details
Main Authors:	Antonio Pich, Antonio Rodríguez-Sánchez
Format:	Article
Language:	English
Published:	SpringerOpen 2022-07-01
Series:	Journal of High Energy Physics
Subjects:	The Strong Coupling Semi-Leptonic Decays Specific QCD Phenomenology Chiral Lagrangian
Online Access:	https://doi.org/10.1007/JHEP07(2022)145

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