Hadron Spectroscopy with Dynamical Chirally Improved Fermions

TL;DR

This paper presents a lattice QCD study of hadron spectroscopy using dynamical chirally improved fermions, analyzing ground state masses of mesons and baryons on a 16^3x32 lattice.

Contribution

It introduces a detailed simulation approach with the Chirally Improved Dirac operator for dynamical quarks and discusses eigenvalue-based qualitative features.

Findings

Ground state masses of pseudoscalar and vector mesons measured

Nucleon and delta baryon masses obtained

Simulation method and equilibration signals analyzed

Abstract

We simulate two dynamical, mass degenerate light quarks on 16^3x32 lattices with a spatial extent of 2.4 fm using the Chirally Improved Dirac operator. The simulation method, the implementation of the action and signals of equilibration are discussed in detail. Based on the eigenvalues of the Dirac operator we discuss some qualitative features of our approach. Results for ground state masses of pseudoscalar and vector mesons as well as for the nucleon and delta baryons are presented.