1998/10/04 by E. -M. Ilgenfritz, E.-M. Ilgenfritz, Stefan Thurner +3
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications #hep-lat
paper · pdf · doi:10.48550/arxiv.hep-lat/9810010
18 pages, 4 eps figures
arxiv created 1998/10/04 · openalex publication_date 1998/10/04 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Using the renormalization group motivated smoothing technique we study the semiclassical structure of the pure Yang-Mills vacuum. We carefully check that identified clusters of topological charge behave like instantons around their centers. Looking at distance distributions of clusters we find instanton-antiinstanton pair formation in the deconfined phase. We use suitably normalized gauge invariant field strength correlators to obtain first quantitative information on the relative color orientation of instantons. We give further evidence for a modified instanton profile in the confined phase and present a simple alternative model for it.