Determination of αs from static QCD potential with renormalon subtraction

We determine the strong coupling constant alpha(s)(Mz) from the static QCD potential by matching a lattice result and a theoretical calculation. We use a new theoretical framework based on operator product expansion (OPE), where renormalons are subtracted from the leading Wilson coefficient. We find that our OPE prediction can explain the lattice data at Lambda T-QCD less than or similar to 0.8. This allows us to use a larger window in matching, which leads to a more reliable determination. We obtain alpha(s)(Mz)= 0.1179(-0.0014)(+0.0015). (C) 2018 The Author(s). Published by Elsevier B.V.