Energy density, stopping and flow in 10−20 A GeV heavy ion collisions

Sorge, H.; Keitz, A. von; Mattiello, R.; Stöcker, H.; Greiner, Walter

doi:10.1016/0370-2693(90)90946-4

Cited by 95 publications

(29 citation statements)

References 21 publications

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“…Experimentally, the recent discovery of proton flow and pion antiflow at the SPS is in line with UrQMD and RQMD predictions (Fig. 13, see [57] and [58]). …”

Section: Collective Flow and The Softening Of The Eossupporting

confidence: 82%

Physics opportunities at RHIC and LHC

Scherer¹,

Bass²,

Bleicher³

et al. 1999

AIP Conference Proceedings

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Abstract. 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. It is demonstrated that these models -although they do treat the most interesting early phase of the collisions quite differently (thermalizing QGP vs. coherent color fields with virtual particles) -all yield a reasonable agreement with a large variety of the available heavy ion data. Hadron/hyperon yields, including J/Ψ meson production/suppression, strange matter formation, dileptons, and directed flow (bounce-off and squeeze-out) are investigated. Observations of interesting phenomena in dense matter are reported. However, we emphasize the need for systematic future measurements to search for simultaneous irregularities in the excitation functions of several observables in order to come close to pinning the properties of hot, dense QCD matter from data. The role of future experiments with the STAR and ALICE detectors is pointed out.

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“…Experimentally, the recent discovery of proton flow and pion antiflow at the SPS is in line with UrQMD and RQMD predictions (Fig. 13, see [57] and [58]). …”

Section: Collective Flow and The Softening Of The Eossupporting

confidence: 82%

Physics opportunities at RHIC and LHC

Scherer¹,

Bass²,

Bleicher³

et al. 1999

AIP Conference Proceedings

Self Cite

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“…[6] combined with the RQMD (version 2.3) event generator [24]. This coalescence model [6] explicitly requires the nucleons, in order to coalesce, to be close both in the momentum and in the configuration space.…”

Section: Discussionmentioning

confidence: 99%

Directed flow of light nuclei in Au+Au collisions at 10.8AGeV/c

Barrette¹,

Bellwied²,

Bennett³

et al. 1999

Phys. Rev. C

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“…ii) Hadronic cascade codes that reproduce the hadron distributions at freeze-out require baryon densities in excess of five times normal nuclear matter density for an extended time, typically about 5 fm/c [6,7].…”

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confidence: 99%

Thermal equilibration and expansion in nucleus-nucleus collisions at the AGS

et al. 1995

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The rather complete data set of hadron yields from central Si + A collisions at the Brookhaven AGS is used to test whether the system at freeze-out is in thermal and hadro-chemical equilibrium. Rapidity and transverse momentum distributions are discussed with regards to the information they provide on hydrodynamic flow.The goal of the ultra-relativistic heavy-ion program at the BNL AGS and CERN SPS is to study highly excited and dense nuclear matter and possibly the transition from hot and dense hadronic matter to deconfined quark-matter with restored chiral symmetry. While future collider experiments will probe a hot quark-gluon plasma with low net baryon density, present fixed target experiments create matter, possibly quark-matter, at very high baryon density and moderate temperature.The present paper is following up on an earlier suggestion by some of us [1], based on the first AGS and SPS data, that a high degree of thermalization is reached and that there is evidence for hydrodynamic expansion of the created fireball. We now use the much larger set of data from central Si + A collisions at the AGS first to discuss quantitatively the 1

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Energy density, stopping and flow in 10−20 A GeV heavy ion collisions

Cited by 95 publications

References 21 publications

Physics opportunities at RHIC and LHC

Physics opportunities at RHIC and LHC

Directed flow of light nuclei in Au+Au collisions at 10.8AGeV/c

Thermal equilibration and expansion in nucleus-nucleus collisions at the AGS

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