Second Order Perturbation Theory for Improved Gluon and Staggered Quark Actions

TL;DR

This paper applies second order perturbation theory to improve calculations of gluon and staggered quark actions, focusing on static potentials, Wilson loops, and self energies.

Contribution

It introduces second order perturbation calculations for Symanzik improved gluon and staggered quark actions, enhancing precision in lattice QCD computations.

Findings

Calculated static quark potential and Wilson loops with improved actions

Determined the static quark self energy and mean link in Landau gauge

Provided results that can refine lattice QCD simulations

Abstract

We present the results of our perturbative calculations of the static quark potential, small Wilson loops, the static quark self energy, and the mean link in Landau gauge. These calculations are done for the one loop Symanzik improved gluon action, and the improved staggered quark action.