1998/11/26 by D. Blaschke, Blaschke, D., Yu. L. Kalinovsky +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.hep-ph/9811476
6 pages, 2 figures. Invited talk at the XI International Conference "Problems of Quantum Field Theory", Dubna, July 13-17, 1998
arxiv created 1998/11/26 · openalex publication_date 1998/11/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A simple confining separable interaction Ansatz for the rainbow-ladder truncated QCD Dyson-Schwinger equations is used to study quark deconfinement and meson states at finite temperature. The model is fixed at T=0 to implement quark confinement while preserving the Goldstone mechanism for the π. Within the Matsubara formalism, a very slow temperature dependence is found for the π and ρ meson masses MH(T) until near the deconfinement temperature Tc=143 MeV. Related to rapid decrease of the dynamically-generated quark mass function for T>Tc, this model produces π and ρ masses that rise significantly and are better interpreted as spatial screening masses. The T-dependent screening mass defect ΔMH = 2πT-MH(T) is compared to results of lattice gauge theory simulations and also to those of an infrared dominant analytic model.