2006/09/06 by Jack L. Uretsky
Physics and Astronomy · #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Relativistic Heavy Ion Collider #hep-ph
paper · pdf · doi:10.1103/physrevc.75.024901
published as Phys.Rev.C75:024901,2007 · 11 pages, 4 figures (2 eps files, 1 ps file) + a figure that uses metafont package feynmf, also forwarded. Open with "latex feynmf.ins". See http://www.ctan.org/tex-archive/help/Catalogue/entries/feynmf.html 9/6/06 replaced figure 2 with scaled version of same
arxiv created 2006/09/06 · openalex publication_date 2007/02/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A gauge theory of pions interacting with \ensuremathρ-mesons at elevated temperatures is used to calculate the pressure in a hot pion gas. No reference is made to the pion's status as a QCD Goldstone boson. The role of the pion is merely that of a carrier of an SU(2) symmetry, gauged to create a vector-meson interaction, the \ensuremathρ playing the role of the interacting vector particle. The results are in rough agreement with much more elaborate calculations, both of the purely hadronic variety, and those that invoke quark-gluon degrees of freedom. The quark-gluon and purely hadronic calculations seemingly lead to very similar predictions which are in accord with recent data from the BNL Relativistic Heavy Ion Collider (RHIC). The results motivate the question as to whether the two descriptions are dual to each other in the sense of being alternate models, each sufficient to explain the observed data.