dorsal/arxiv
View SchemaHadronic freeze-out following a first order hadronization phase transition in ultrarelativistic heavy-ion collisions
| Authors | S. A. Bass, A. Dumitru, M. Bleicher, L. Bravina, E. Zabrodin, H. Stoecker, W. Greiner |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9902062 |
| URL | https://arxiv.org/abs/nucl-th/9902062 |
| DOI | 10.1103/PhysRevC.60.021902 |
| Journal | Phys.Rev.C60:021902,1999 |
Abstract
We analyze the hadronic freeze-out in ultra-relativistic heavy ion collisions at RHIC in a transport approach which combines hydrodynamics for the early, dense, deconfined stage of the reaction with a microscopic non-equilibrium model for the later hadronic stage at which the hydrodynamic equilibrium assumptions are not valid. With this ansatz we are able to self-consistently calculate the freeze-out of the system and determine space-time hypersurfaces for individual hadron species. The space-time domains of the freeze-out for several hadron species are found to be actually four-dimensional, and differ drastically for the individual hadrons species. Freeze-out radii distributions are similar in width for most hadron species, even though the Omega-baryon is found to be emitted rather close to the phase boundary and shows the smallest freeze-out radii and times among all baryon species. The total lifetime of the system does not change by more than 10% when going from SPS to RHIC energies.
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"abstract": "We analyze the hadronic freeze-out in ultra-relativistic heavy ion collisions\nat RHIC in a transport approach which combines hydrodynamics for the early,\ndense, deconfined stage of the reaction with a microscopic non-equilibrium\nmodel for the later hadronic stage at which the hydrodynamic equilibrium\nassumptions are not valid. With this ansatz we are able to self-consistently\ncalculate the freeze-out of the system and determine space-time hypersurfaces\nfor individual hadron species. The space-time domains of the freeze-out for\nseveral hadron species are found to be actually four-dimensional, and differ\ndrastically for the individual hadrons species. Freeze-out radii distributions\nare similar in width for most hadron species, even though the Omega-baryon is\nfound to be emitted rather close to the phase boundary and shows the smallest\nfreeze-out radii and times among all baryon species. The total lifetime of the\nsystem does not change by more than 10% when going from SPS to RHIC energies.",
"arxiv_id": "nucl-th/9902062",
"authors": [
"S. A. Bass",
"A. Dumitru",
"M. Bleicher",
"L. Bravina",
"E. Zabrodin",
"H. Stoecker",
"W. Greiner"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.60.021902",
"journal_ref": "Phys.Rev.C60:021902,1999",
"title": "Hadronic freeze-out following a first order hadronization phase transition in ultrarelativistic heavy-ion collisions",
"url": "https://arxiv.org/abs/nucl-th/9902062"
},
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