2000/04/25 by M. Iwasaki, K. Kanaya, Iwasaki, Y. +7
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.hep-lat/0004024
openalex publication_date 2000/04/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the nature of the QCD vacuum at general number of flavors NF by numerical simulations on the lattice. Combining the results with those of the perturbation theory, we propose the following picture: 1) For NF ≥ 17, there exists only one IR fixed point at vanishing gauge coupling, i.e., the theory in the continuum limit is trivial. 2) For 16 ≥ NF ≥ 7, there is a non-trivial fixed point. Therefore, the theory is non-trivial with anomalous dimensions, however, without quark confinement. 3) For NF ≤ 6, theories satisfy both quark confinement and spontaneous chiral symmetry breaking in the continuum limit.