1999/05/31 by D. Blaschke, P. C. Tandy
Physics and Astronomy · #nucl-th
published as "Understanding Deconfinement in QCD", Eds. D. Blaschke, F. Karsch and C. D. Roberts, World Scientific, Singapore, p. 218 (1999) · 13 pages, 8 figures, LaTeX, sprocl.sty, psfig.sty, Summary of presentations by the authors at the Workshop "Understanding Deconfinement in QCD", ECT*, Trento, 1-13/March, 1999
arxiv created 1999/05/31 · arxiv updated 2009/12/01
A simple confining separable interaction Ansatz for the rainbow-ladder truncated QCD Dyson-Schwinger equations is used to implement chiral restoration and quark deconfinement in a study of q q meson states at finite temperature. The model is fixed at T=0 by reproducing selected pi and rho properties. Deconfinement and chiral restoration are found to both occur at Tc=146 MeV. In the pion sector, we investigate Mpi(T) and fpi(T) along with the exact QCD mass relation and the GMOR relation. For the vector mode, we investigate the 3-space transverse and longitudinal masses MrhoT(T) and MρL(T), along with the widthfor the decay rho0 --> e+e-. The equation of state (EOS) for the model is investigated in the T-mu plane, a tri-critical point is identified and the relationship to a bag model is discussed. The deconfinement transition in rapidly rotating neutron stars is considered and a new signal from the pulsar timing in binary systems with mass accretion is suggested. The model is used to discuss the possibility of a superconducting quark matter phase.