First results from a parametrized Fixed-Point QCD action

TL;DR

This paper introduces a new fermion action approximating the Fixed-Point action, designed to improve lattice QCD simulations by incorporating full Clifford algebra and fat links, and presents initial results on hadron spectrum and dispersion relations.

Contribution

It proposes a novel parametrized fermion action approximating the Fixed-Point action with enhanced symmetry properties and improved link structures.

Findings

Initial hadron spectrum results are promising.

Energy-momentum dispersion relations show expected behavior.

The action demonstrates potential for better chiral symmetry preservation.

Abstract

We have constructed a new fermion action which is an approximation to the (chirally symmetric) Fixed-Point action, containing the full Clifford algebra with couplings inside a hypercube and paths built from renormalization group inspired fat links. We present an exploratory study of the light hadron spectrum and the energy-momentum dispersion relation.