Closed-time path integral formalism and medium effects of nonequilibrium QCD matter

2001/02/28 by Chung-Wen Kao, Gouranga C. Nayak, Walter Greiner
Physics and Astronomy · #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-lat #hep-ph #hep-th #nucl-th

paper · pdf · doi:10.1103/physrevd.66.034017

published as Phys.Rev. D66 (2002) 034017 · Final version, To appear in Physical Review D, Minor modification, reference added

arxiv created 2002/07/01 · openalex publication_date 2002/08/20 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We apply the closed-time path integral formalism to study the medium effects of nonequilibrium gluon matter. We derive the medium modified resummed gluon propagator to the one loop level in nonequilibrium in the covariant gauge. The gluon propagator we derive can be used to remove the infrared divergences in the secondary parton collisions to study the thermalization of minijet parton plasma at BNL RHIC and CERN LHC.

Citations

• Nonequilibrium initial conditions from perturbative QCD for relativistic and ultrarelativistic heavy ion collisions
• Thermal photon production rate from nonequilibrium quantum field theory