TY - JOUR
T1 - Determination of αs from static QCD potential with renormalon subtraction
AU - Takaura, H.
AU - Kaneko, T.
AU - Kiyo, Y.
AU - Sumino, Y.
PY - 2019/2/10
Y1 - 2019/2/10
N2 - We determine the strong coupling constant αs(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 ΛQCDr≲0.8. This allows us to use a larger window in matching, which leads to a more reliable determination. We obtain αs(MZ)=0.1179−0.0014 +0.0015.
AB - We determine the strong coupling constant αs(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 ΛQCDr≲0.8. This allows us to use a larger window in matching, which leads to a more reliable determination. We obtain αs(MZ)=0.1179−0.0014 +0.0015.
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U2 - 10.1016/j.physletb.2018.12.060
DO - 10.1016/j.physletb.2018.12.060
M3 - Article
AN - SCOPUS:85059814555
VL - 789
SP - 598
EP - 602
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
ER -