Anisotropic lattices for precision computations in heavy flavor physics

TL;DR

This paper explores the use of anisotropic lattices in lattice QCD to enhance the precision of heavy-light matrix element calculations, emphasizing improved calibration techniques for higher accuracy.

Contribution

It introduces a strategy for tuning gauge and quark parameters in anisotropic lattices with sub-1% accuracy, advancing precision in heavy-flavor physics computations.

Findings

Previous calibration achieved comparable results to existing methods.

Enhanced calibration accuracy can potentially improve computation precision.

The approach is demonstrated within the quenched approximation.

Abstract

We study the anisotropic lattice QCD for precision computations of heavy-light matrix elements. Our previous study in which the lattices are calibrated with a few percent accuracy has already given results comparable to the existing calculations. This suggests that even higher precision may be achieved by a more precise calibration of anisotropic lattices. We describe our strategy to tune the gauge and quark parameters with accuracies much less than 1 % in the quenched approximation.