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arXiv · 2111.02288

The static energy in 2+1+1-flavor QCD

Sebastian Steinbeißer·Nora Brambilla·Rafael L. Delgado·Andreas S. Kronfeld·Viljami Leino·Peter Petreczky·Antonio Vairo·Johannes Heinrich Weber
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Abstract

We report on the status of the analysis of the static energy in $2+1+1$-flavor QCD. The static energy is obtained by measuring Wilson line correlators in Coulomb gauge using the HISQ action, yielding the scales $r_{0}/a$, $r_{1}/a$, $r_{2}/a$, their ratios, and the string tension $\sigma r_{i}^{2}$. We put emphasis on the possible effects due to the dynamical charm-quark by comparing the lattice results to continuum results of the static energy with and without a massive flavor at two-loop accuracy. We employ gauge-field ensembles from the HotQCD and MILC Collaborations.

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Sebastian Steinbeißer, Nora Brambilla, Rafael L. Delgado, Andreas S. Kronfeld, Viljami Leino, Peter Petreczky, Antonio Vairo, Johannes Heinrich Weber. 2021-11-03. The static energy in 2+1+1-flavor QCD. https://doi.org/10.22323/1.396.0521

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