The QCD static energy at NNNLL
Nora Brambilla, Xavier Garcia i Tormo, Joan Soto, Antonio Vairo
TL;DR
This paper calculates the QCD static energy at short distances with high precision, using three-loop calculations, and compares it with lattice data to determine unknown theoretical components.
Contribution
It provides the first NNNLL accuracy calculation of the QCD static energy and extracts the unknown three-loop singlet potential piece from lattice comparisons.
Findings
High-precision NNNLL static energy calculation
Extraction of the three-loop singlet potential piece
Agreement with lattice data within uncertainties
Abstract
We compute the static energy of QCD at short distances at next-to-next-to-next-to leading-logarithmic accuracy in terms of the three-loop singlet potential. By comparing our results with lattice data we extract the value of the unknown piece of the three-loop singlet potential.
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