2004/08/16 by Jorge Casalderrey-Solana, Edward Shuryak, Casalderrey-Solana, Jorge +2 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0408178
Second version has only minor corrections of editorial type, put it before submission to PRC
arxiv created 2004/09/27 · arxiv updated 2009/12/01
Recently there was a significant change of views on physical properties and underlying dynamics of Quark-Gluon Plasma at T=170-350 MeV, produced in heavy ion collisions at RHIC. Instead of weakly coupled gas of quasiparticles, it is rather a liquid-like matter with multiple bound states. In this paper we discuss how one can test these ideas experimentally, using the ``penetrating probes'' and looking for certain peaks at some invariant masses. In dileptons the most promising are modified ρ,ω, with M(T≈ Tc)∼ .5 GeV and also near zero binding at M(T≈ (1.5-2)Tc)=1.5-2 GeV. We also discuss the observability of peaks corresponding to scalar/pseudoscalar mesons in the two-photon channel.