A non-perturbative study of the action parameters for anisotropic-lattice quarks

TL;DR

This paper investigates the parameter tuning of a specialized quark action for highly anisotropic lattices, demonstrating its effectiveness in simulating heavy quarks like bottom and strange.

Contribution

It provides a non-perturbative analysis of action parameters and applies this to heavy quark simulations at high anisotropy levels.

Findings

Parameters depend on quark mass and are characterized non-perturbatively.

Simulations at anisotropy of six yield consistent heavy quark results.

Effective for studying heavy quark physics on anisotropic lattices.

Abstract

A quark action designed for highly anisotropic lattice simulations is discussed. The mass-dependence of the parameters in the action is studied and the results are presented. Applications of this action in studies of heavy quark quantities are described and results are presented from simulations at an anisotropy of six, for a range of quark masses from strange to bottom.