1995/06/27 by Jean-Paul Blaizot, J. -P. Blaizot, Edmond Iancu +1 · 1 citation
Mathematics · Physics and Astronomy · #Abelian group #Gauge (firearms) #Gauge theory #Geography #High-Energy Particle Collisions Research #Mathematical physics #Mathematics #Non-perturbative #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Theoretical physics #hep-ph
paper · pdf · doi:10.1016/0550-3213(95)00547-1
published as Nucl.Phys. B459 (1996) 559-588 · 29 pages, LaTex, 7 figures (not included, available upon request)
arxiv created 1995/06/27 · openalex publication_date 1996/01/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
When computed to one-loop order in resummed perturbation theory, the non-abelian Debye mass appears to be logarithmically sensitive to the magnetic scale g2T. More generally, we show that in higher orders power-like infrared divergences forbid the use of perturbation theory to calculate the corrections to Debye screening. A similar infrared problem occurs in the determination of the mass-shell for the scalar propagator in 2+1-dimensional scalar electrodynamics. In this context, we provide a non-perturbative approach which solves the infrared problems and allows for an accurate calculation of the scalar propagator in the vicinity of the mass-shell.