1996/11/01 by Robert D. Pisarski, M. Tytgat, Michel Tytgat
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th #nucl-th
paper · pdf · doi:10.1103/physrevlett.78.3622
published as Phys.Rev.Lett. 78 (1997) 3622-3625 · 4 pages, 2 figures, revtex + epsfig
arxiv created 1996/11/01 · openalex publication_date 1997/05/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Consider the effective Lagrangian for pions in the chiral limit, computed to leading order in an expansion about zero temperature. To describe the scattering of pions with small momenta, it is necessary to include not just the usual shift in the pion decay constant, but also a new, nonlocal term, which is precisely analogous to the hard thermal loops of hot gauge theories.