2000/08/31 by A. Abada, K. Bouakaz, N. Daira-Aifa · 12 citations
Physics and Astronomy · #Context (archaeology) #High-Energy Particle Collisions Research #Infrared #Magnetic field #Perturbation (astronomy) #Perturbation theory (quantum mechanics) #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #hep-ph
paper · pdf · doi:10.1007/s100520100554
published in The European Physical Journal C 18(4), 765-777 (Springer Science+Business Media) · 24 pages, REVTeX
arxiv created 2000/08/31 · openalex publication_date 2001/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We determine the analytic expression of the damping rates for very soft moving quarks in an expansion to second order in powers of their momentum in the context of QCD at high temperature. The calculation is performed using the hard-thermal-loop-summed perturbation scheme. We describe the range of validity of the expansion and make a comparison with other calculations, particularly those using a magnetic mass as a shield from infrared sensitivity. We discuss the possible occurrence of infrared divergences in our results and argue that they are due to magnetic sensitivity.