2013/07/31 by Masashi Hayakawa, M. Hayakawa, K. -I. Ishikawa +6
Physics and Astronomy · #Chiral anomaly #Chiral perturbation theory #Chiral symmetry #Chiral symmetry breaking #Fermion #Gauge theory #High-Energy Particle Collisions Research #Lattice (music) #Lattice QCD #Lattice gauge theory #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Theoretical physics #hep-lat #hep-ph
paper · pdf · doi:10.1103/physrevd.88.094506
published as Phys. Rev. D 88, 094506 (2013) · 53 pages, 33 figures, 17 tables, typos corrected, references changed
arxiv created 2013/07/31 · openalex publication_date 2013/11/18 · arxiv updated 2013/11/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the chiral properties of SU(2)C gauge theory with six flavors, i.e., six light Dirac fermions in the fundamental representations by lattice simulation, and point out that the spontaneous breakdown of chiral symmetry does not occur in this system. The quark mass dependence of the mesonic spectrum provides evidence for such a possibility. The decay constant tends to be increased by the finite size effect, which is opposite to the behavior predicted by chiral perturbation theory and indicates that the long distance dynamics in the six-flavor theory could be different from the theory with chiral symmetry breaking. The subtracted chiral condensate, whose utility is demonstrated by the simulation of two-flavor theory, is shown to vanish in the chiral limit within the precision of available data.