2011/01/30 by Arata Yamamoto, Yamamoto, Arata
Physics and Astronomy · #Chiral perturbation theory #Chiral symmetry breaking #Color confinement #FOS: Physical sciences #Gluon #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Lattice QCD #Lattice field theory #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quark–gluon plasma #Spontaneous symmetry breaking #Symmetry breaking #hep-lat
paper · pdf · doi:10.48550/arxiv.1101.5765
published in arXiv (Cornell University) (Cornell University) · Ph.D. thesis
openalex publication_date 2011/01/30 · arxiv created 2011/02/14 · arxiv updated 2011/02/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
In this thesis, we perform the lattice QCD analysis via the energy-momentum component of gluons. By introducing the momentum cutoff to the link variable, we investigate which energy-momentum components of gluons induce each QCD phenomenon. We use the Landau gauge for the most part of the lattice QCD analysis. In lattice QCD, we analyze color confinement, spontaneous chiral symmetry breaking, topological charge, and the related topics. We also discuss several comparisons with effective theories. As for color confinement, we calculate the quark-antiquark potential, the color flux tube, and meson masses. From quantitative analysis, we find that color confinement is induced by the low-momentum component below 1.5 GeV. As for spontaneous chiral symmetry breaking, we calculate the chiral condensate and the Dirac spectrum. Spontaneous chiral symmetry breaking is induced by the broad low-momentum component which ranges even above 1.5 GeV. The present result suggests that color confinement and spontaneous chiral symmetry breaking are induced by somehow different energy-momentum components of gluons. As for topological charge, we calculate the topological charge density and the Dirac zero mode. Topological charge is induced by the broad energy-momentum component, which is similar to spontaneous chiral symmetry breaking.