Quenched Static force from generalized Wilson loops with gradient flow
Proceedings of The 40th International Symposium on Lattice Field Theory — PoS(LATTICE2023)(2024)
摘要
We compute the static force on the lattice in the quenched case directly
through generalized Wilson loops. We modify the Wilson loop by inserting an
E-field component on one of the temporal Wilson lines. However, chromo-field
components prevent us from performing the continuum limit properly, hence, we
use gradient flow to renormalize the field insertion. As a result, we obtain
continuum results and compare them to perturbative expression to extract
Λ_0, and we predict the value √(8t_0)Λ_MS^n_f=0 =0.629^+22_-26. This work serves
as preparation for similar operators with field insertions required in
nonrelativistic effective field theories.
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