Possible Striking Signals for a Quark-Gluon Plasma at RHIC

Abstract

We believe that one can have serious reservations as to whether heavy ion collisions (e.g. 100 GeV/n Au + 100 GeV/n Au) can lead to Thermal and Chemical equilibrium over large regions (particularly if it is assumed this happens whenever QGP is produced at RHIC-that is if it is produced). It is at present not clear that the collision dynamics and times available will lead to this. An alternate scenario proposed by Van Hove where localized in rapidity bubbles of plasma may well be more probable, and may well occur at least some of the time, and some of the time mainly survive to the final state. If this occurs we have developed a series of event generators to extend and describe these phenomena. A Van Hove type[6,7] spherical bubble at eta=0 is embedded in a resonable event generator in qualitative agreement with Hijing etc[12]. The plasma bubble hadronized at a temperature of 170 Mev according to the model developed by Koch, Muller and Rafelski[21]. The amount of available bubble energy is selected by that in a small central circular cross-section of radius approx 1.3fm or 2.5fm in 100 Gev/n Au+AU, central events The results predict Possible Striking Signals for a QGP. We are also applying these techniques to investigating Kharzeev and Pisarski bubbles of metastable vacua with odd CP.

32pp,16figs, Journal of Physics G:Nuclear&Particle Physics-in press

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• HIJING 1.0: A Monte Carlo Program for Parton and Particle Production in High Energy Hadronic and Nuclear Collisions
• Static and Dynamic Critical Phenomena at a Second Order QCD Phase Transition
• Quark Matter 95: Concluding Remarks

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• Observing Spontaneous Strong Parity Violation in Heavy-Ion Collisions
• Effect of geometrical size of the particles in a hot and dense hadron gas
• Searching for Quark-Gluon Plasma(QGP) Bubble effects at RHIC/LHC
• Freeze-out volume of hot dense fireball
• Two-particle correlations in azimuthal angle and pseudorapidity in central ${}^7$Be+${}^9$Be collisions at the CERN Super Proton Synchrotron
• The Centrality Dependence of the Parton Bubble Model for high energy heavy ion collisions and fireball surface substructure at RHIC