Current Physics Results from Staggered Chiral Perturbation Theory

TL;DR

This paper reviews recent lattice QCD results obtained with staggered quarks, focusing on quantities like pion mass and decay constants, extrapolated to physical quark masses and continuum limit using staggered chiral perturbation theory.

Contribution

It provides a summary of numerical results and applications of staggered chiral perturbation theory to key meson properties in lattice QCD.

Findings

Accurate calculations of pion mass and decay constant.

Application of staggered chiral perturbation theory to heavy-light meson decay constants.

Results extrapolated reliably to physical quark masses and continuum limit.

Abstract

We review several results that have been obtained using lattice QCD with the staggered quark formulation. Our focus is on the quantities that have been calculated numerically with low statistical errors and have been extrapolated to the physical quark mass limit and continuum limit using staggered chiral perturbation theory. We limit our discussion to a brief introduction to staggered quarks, and applications of staggered chiral perturbation theory to the pion mass, decay constant, and heavy-light meson decay constants.