2001/11/30 by D. Son, D. T. Son, Mikhail Stephanov +2 · 3 citations
Arts and Humanities · Physics and Astronomy · #High-Energy Particle Collisions Research #Historical Astronomy and Related Studies #Historical, Religious, and Philosophical Studies #Medieval and Classical Philosophy #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevlett.88.202302
published as Phys.Rev.Lett. 88 (2002) 202302 · 8 pages (single column), RevTeX; added references, version to be published in PRL
arxiv created 2002/04/30 · arxiv updated 2009/11/30 · openalex publication_date 2012/05/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
We point out that, in analogy with spin waves in antiferromagnets, all parameters describing the real-time propagation of soft pions at temperatures below the QCD chiral phase transition can be expressed in terms of static correlators. This allows, in principle, the determination of the soft pion dispersion relation on the lattice. Using scaling and universality arguments, we determine the critical behavior of the parameters of pion propagation. We predict that, when the critical temperature is approached from below, the pole mass of the pion drops despite the growth of the pion screening mass. This fact is attributed to the decrease of the pion velocity near the phase transition.