dorsal/arxiv
View SchemaSoft transverse expansion in Pb(158 AGeV) on Pb collisions: preequilibrium motion or 1st order phase transition?
| Authors | H. Sorge |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9701012 |
| URL | https://arxiv.org/abs/nucl-th/9701012 |
| DOI | 10.1016/S0370-2693(97)00474-7 |
| Journal | Phys.Lett. B402 (1997) 251-256 |
Abstract
Transverse expansion of centrally produced matter in Pb on Pb collisions at beam energies around 158 AGeV appears to be rather `soft'. Two possible reasons -- an extended preequilibrium stage and a first order phase transition from a quark-gluon-plasma into hadronic matter -- are discussed. The softening of transverse expansion caused by preequilibrium dynamics is estimated with the aid of the transport model RQMD which does not contain a first order phase transition. It is found that the anisotropy of transverse flow in non-central reactions is very different in the preequilibrium and hydrodynamic scenarios even if the latter are based on a strong 1st order transition.
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"abstract": "Transverse expansion of centrally produced matter in Pb on Pb collisions at\nbeam energies around 158 AGeV appears to be rather `soft\u0027. Two possible reasons\n-- an extended preequilibrium stage and a first order phase transition from a\nquark-gluon-plasma into hadronic matter -- are discussed. The softening of\ntransverse expansion caused by preequilibrium dynamics is estimated with the\naid of the transport model RQMD which does not contain a first order phase\ntransition. It is found that the anisotropy of transverse flow in non-central\nreactions is very different in the preequilibrium and hydrodynamic scenarios\neven if the latter are based on a strong 1st order transition.",
"arxiv_id": "nucl-th/9701012",
"authors": [
"H. Sorge"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0370-2693(97)00474-7",
"journal_ref": "Phys.Lett. B402 (1997) 251-256",
"title": "Soft transverse expansion in Pb(158 AGeV) on Pb collisions: preequilibrium motion or 1st order phase transition?",
"url": "https://arxiv.org/abs/nucl-th/9701012"
},
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