QCD with two dynamical flavors of chirally improved quarks

Abstract

Considering Ginsparg-Wilson type fermions dynamically in lattice QCD simulations is a challenging task. The hope is to be able to approach smaller pion masses and to eventually reach physical situations. The price to pay is substantially higher computational costs. Here we discuss first results of a dynamical implementation of the so-called Chirally Improved Fermions, a Dirac operator that obeys the Ginsparg-Wilson condition approximately. The simulation is for two species of mass-degenerate quarks on 12^3x24 lattices with spatial size up to 1.55 fm. Implementation of the Hybrid Monte-Carlo algorithm and an analysis of the results are presented.

arXiv comment9 pages, 7 figures, RevTeX4, minor correction

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Cited by in corpus (13)

• Theta dependence of SU(N) gauge theories in the presence of a topological term
• Hypercubic Smeared Links for Dynamical Fermions
• QCD with Two Light Dynamical Chirally Improved Quarks: Baryons
• Meson and baryon spectrum for QCD with two light dynamical quarks
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• Hadron Spectroscopy with Dynamical Chirally Improved Fermions
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• Domain decomposition improvement of quark propagator estimation
• The Hadron Spectrum from Lattice QCD
• Optimised Dirac Operators on the Lattice: Construction, Properties and Applications
• Heavy-light hadrons and their excitations