TY - JOUR
T1 - αs from the QCD static energy
AU - Brambilla, Nora
AU - Bazavov, Alexei
AU - Garcia i Tormo, Xavier
AU - Petreczky, Péter
AU - Soto, Joan
AU - Vairo, Antonio
AU - Weber, Johannes Heinrich
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
PY - 2019
Y1 - 2019
N2 - We present our latest determination of the strong coupling constant αs from the Quantum Chro-modynamics static energy: αs(mZ) = 0.1166+−0000080012, extracted at three loops with leading ultrasoft log resummation. The determination is based on a combination of lattice data on the static energy at small quark-antiquark distance and perturbative high-order calculations of the static energy for small quark-antiquark distance. We discuss further improvements from an upcoming extraction based on new lattice data, at smaller lattice spacings reaching shorter distances, and on lattice data on the singlet free energy at finite temperature at very small distances.
AB - We present our latest determination of the strong coupling constant αs from the Quantum Chro-modynamics static energy: αs(mZ) = 0.1166+−0000080012, extracted at three loops with leading ultrasoft log resummation. The determination is based on a combination of lattice data on the static energy at small quark-antiquark distance and perturbative high-order calculations of the static energy for small quark-antiquark distance. We discuss further improvements from an upcoming extraction based on new lattice data, at smaller lattice spacings reaching shorter distances, and on lattice data on the singlet free energy at finite temperature at very small distances.
UR - http://www.scopus.com/inward/record.url?scp=85073419901&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85073419901
SN - 1824-8039
VL - 365
JO - Proceedings of Science
JF - Proceedings of Science
T2 - 2019 Alphas Workshop on Precision Measurements of the QCD Coupling Constant, ALPHAS 2019
Y2 - 11 February 2019 through 15 February 2019
ER -