Gauge-Invariant Renormalization Group at Finite Temperature and Debye Screening

1997/06/30 by Massimo Pietroni, Pietroni, Massimo
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9706544

5 pages (LaTeX) + 2 figures, To appear on the proceedings of "Strong and Electroweak Matter '97"

arxiv created 1997/06/30 · openalex publication_date 1997/06/30 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

I describe an application of Wilson Renormalization group to the real time formalism of finite temperature field theory. The approach has two nice features: 1) the RG flow equations describe non-perturbatively the effect of thermal fluctuations only, and, 2) the flow is gauge invariant. I then describe the application of the method to the study of the gluon self-energy in SU(N), and present results for the computation of the Debye and magnetic screening masses.

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