Damping rates for moving particles in hot QCD

1993/02/09 by Robert D. Pisarski, R. D. Pisarski · 14 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.47.5589

LaTeX file, 24 pages, BNL-P-1/92 (December, 1992)

arxiv created 1993/02/09 · openalex publication_date 1993/06/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Using a program of perturbative resummation I compute the damping rates for fields at nonzero spatial momentum to leading order in weak coupling in hot QCD. Sum rules for spectral densities are used to simplify the calculations. For massless fields the damping rate has an apparent logarithmic divergence in the infrared limit, which is cut off by the screening of static magnetic fields ("magnetic mass"). This demonstrates how at high temperature even perturbative quantities are sensitive to nonperturbative phenomena.

Citations

• Relativistic Quantum Theory
• Action for the hot gluon plasma based on the Chern-Simons theory
• QCD and instantons at finite temperature

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