Color Confinement in lattice Landau gauge with unquenched Wilson and KS fermions
Hideo Nakajima, Sadataka Furui
TL;DR
This paper verifies the Kugo-Ojima confinement criterion in unquenched Landau gauge QCD simulations, demonstrating infrared suppression of the valence quark propagator using improved staggered fermions on MILC configurations.
Contribution
It provides the first verification of the Kugo-Ojima criterion in unquenched lattice QCD with improved staggered fermions.
Findings
Infrared suppression of the quark propagator observed.
Validation of the Kugo-Ojima confinement criterion in unquenched QCD.
Use of improved fermion actions enhances the analysis.
Abstract
The Kugo-Ojima confinement criterion is verified in the unquenched Landau gauge QCD simulation. The valence quark propagator of the Kogut-Susskind fermion with use of the fermion action including the Naik term and the staple contribution is calculated on MILC Asqtad unquenched gauge configurations, and it shows infrared suppression of the quark propagator.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Medical Imaging Techniques and Applications