2001/09/06 by V. Shevchenko, Yu. A. Simonov, Yu. Simonov · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.65.074029
published as Phys.Rev. D65 (2002) 074029 · LaTeX, 29 pages
arxiv created 2001/09/06 · openalex publication_date 2002/04/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
The operator product expansion (OPE) technique is analyzed in Abelian and non-Abelian field theoretical models with confinement. Special attention is paid to the regimes where the nonzero virtuality of vacuum fields is felt by external currents. It is stressed that despite the fact that the physics of confinement is sometimes considered as being caused by ``soft'' fields, it can exhibit pronounced ``hard'' effects in OPE.