A low-energy determination of αs at three loops

Antonio Vairo

doi:10.1051/epjconf/201612007004

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 120, 07004 (2016)
https://doi.org/10.1051/epjconf/201612007004

A low-energy determination of α_s at three loops

Antonio Vairo^a

Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany

^a e-mail: antonio.vairo@ph.tum.de

Published online: 4 July 2016

Abstract

We review one of the most accurate low-energy determinations of α_s. Comparing at short distances the QCD static energy at three loops and resummation of the next-to-next-to leading logarithms with its determination in 2+1-flavor lattice QCD, we obtain α_s (1.5 GeV) = 0.336^+0.012_-0.008, which corresponds to α_s (M_Z) = 0.1166^+0.012_-0.008. We discuss future perspectives.

© Owned by the authors, published by EDP Sciences, 2016

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