Regular Article - Theoretical Physics
Strong coupling constant from moments of quarkonium correlators revisited
Physics Department, Brookhaven National Laboratory, 11973, Upton, NY, USA
2 Institut für Physik, Humboldt-Universität zu Berlin and IRIS Adlershof, 12489, Berlin, Germany
Accepted: 24 December 2021
Published online: 24 January 2022
We revisit previous determination of the strong coupling constant from moments of quarkonium correlators in (2 + 1)-flavor QCD. We use previously calculated moments obtained with Highly Improved Staggered Quark (HISQ) action for five different quark masses and several lattice spacings. We perform a careful continuum extrapolations of the moments and from the comparison of these to the perturbative result we determine the QCD Lambda parameter, MeV. This corresponds to .
© The Author(s) 2022
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