Critical Review Of Quark Gluon Plasma Signals

Abstract

Compelling evidence for a new form of matter has been claimed to be formed in Pb+Pb collisions at SPS. We critically review two suggested signatures for this new state of matter: First the suppression of the J/$\Psi$, which should be strongly suppressed in the QGP by two different mechanisms, the color-screening and the QCD-photoeffect. Secondly the measured particle, in particular strange hadronic, ratios might signal the freeze-out from a quark-gluon phase.

arXiv comment7 pages 6 figures, Contribution to the Proceedings of CRIS 2000, 3rd Catania Relativistic Ion Studies, Acicastello, Italy, May 22-26, 2000

Cited by in corpus (8)

• Particle Ratios, Equilibration, and the QCD Phase Boundary
• Particle ratios at RHIC: Effective hadron masses and chemical freeze-out
• The K/pi ratio from condensed Polyakov loops
• Hadro-Chemistry and Evolution of (Anti-) Baryon Densities at RHIC
• Thermal analysis of production of resonances in relativistic heavy-ion collisions
• Scaling of hadron masses and widths in thermal models for ultra-relativistic heavy-ion collisions
• Global Properties of Nucleus-Nucleus Collisions
• Relativistic Nucleus-Nucleus Collisions and the QCD Matter Phase Diagram