D. Zschiesche

TL;DR: In this paper, the uniqueness of often proposed experimental signatures for quark formation in relativistic heavy ion collisions was discussed, using insight gained from non-equilibrium models (three-fluid hydrodynamics and the hadronic transport model UrQMD).

TL;DR: In this paper, the measured particle ratios in central heavy-ion collisions at RHIC-BNL are investigated within a chemical and thermal equilibrium chiral SU(3) σ-ω approach.

TL;DR: In this article, the uniqueness of often proposed experimental signatures for quark matter formation in relativistic heavy ion collisions is discussed, and it is demonstrated that so far none of the proposed signals like J/ϕ meson production/suppression, strangeness enhancement, dileptons, and directed flow unambiguously show that a phase of deconfined matter has been formed in SPS Pb+Pb collisions.

TL;DR: In this paper, the uniqueness of often proposed experimental signatures for quark matter formation in relativistic heavy ion collisions is discussed, and it is demonstrated that so far none of the proposed signals like J\psi meson production/suppression, strangeness enhancement, dileptons, and directed flow unambigiously show that a phase of deconfined matter has been formed in SPS Pb+Pb collisions.

TL;DR: In this article, nonequilibrium models (three-fluid hydrodynamics, UrQMD, and quark molecular dynamics) are used to discuss the uniqueness of often proposed experimental signatures for quark matter formation in relativistic heavy ion collisions from the SPS via RHIC to LHC.