# Improved gluonic actions on anisotropic lattices

## TL;DR

This paper introduces perturbatively-improved gluonic actions on anisotropic lattices that enhance the efficiency of measuring noisy correlation functions like glueball correlators, with results on glueball masses and the heavy-quark potential.

## Contribution

It presents a novel derivation of improved gluonic actions on anisotropic lattices incorporating mean-field link renormalization.

## Key findings

- Accurate low-lying glueball masses obtained.
- Effective measurement of the heavy-quark potential.
- Enhanced efficiency in lattice QCD simulations.

## Abstract

The use of novel perturbatively-improved gluonic actions on anisotropic lattices in which the temporal spacing is much smaller than that in the spatial directions is discussed. Such actions permit more efficient measurements of noisy correlation functions, such as glueball correlators, on coarse lattices. A derivation of these actions at tree-level is outlined; mean-field link renormalization plays a crucial role in their construction. Results for the low-lying glueball masses and the heavy-quark potential are presented.