dorsal/arxiv
View SchemaDynamical Freeze-out in 3-Fluid Hydrodynamics
| Authors | V. N. Russkikh, Yu. B. Ivanov |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0611094 |
| URL | https://arxiv.org/abs/nucl-th/0611094 |
| DOI | 10.1103/PhysRevC.76.054907 |
| Journal | Phys.Rev.C76:054907,2007 |
Abstract
Freeze-out procedure accepted in the model of 3-fluid dynamics (3FD) is analyzed. This procedure is formulated in terms of drain terms in hydrodynamic equations. Dynamics of the freeze-out is illustrated by 1-dimensional simulations. It is demonstrated that the resulting freeze-out reveals a nontrivial dynamics depending on initial conditions in the expanding ``fireball''. The freeze-out front is not defined just ``geometrically'' on the condition of the freeze-out criterion met but rather is a subject the fluid evolution. It competes with the fluid flow and not always reaches the place where the freeze-out criterion is met. Dynamics of the freeze-out in 3D simulations is analyzed. It is demonstrated that the late stage of central nuclear collisions at top SPS energies is of the form of three (two baryon-rich and one baryon-free) fireballs separated from each other.
{
"annotation_id": "74e04afb-0471-4230-9cd1-0184fdde73a7",
"date_created": "2026-03-02T18:00:11.980000Z",
"date_modified": "2026-03-02T18:00:11.980000Z",
"file_hash": "ea481178828d5a0cd930b3b440ddf6df64f4ecb6fb9782fe319b5ce4b2ca1009",
"private": false,
"record": {
"abstract": "Freeze-out procedure accepted in the model of 3-fluid dynamics (3FD) is\nanalyzed. This procedure is formulated in terms of drain terms in hydrodynamic\nequations. Dynamics of the freeze-out is illustrated by 1-dimensional\nsimulations. It is demonstrated that the resulting freeze-out reveals a\nnontrivial dynamics depending on initial conditions in the expanding\n``fireball\u0027\u0027. The freeze-out front is not defined just ``geometrically\u0027\u0027 on the\ncondition of the freeze-out criterion met but rather is a subject the fluid\nevolution. It competes with the fluid flow and not always reaches the place\nwhere the freeze-out criterion is met. Dynamics of the freeze-out in 3D\nsimulations is analyzed. It is demonstrated that the late stage of central\nnuclear collisions at top SPS energies is of the form of three (two baryon-rich\nand one baryon-free) fireballs separated from each other.",
"arxiv_id": "nucl-th/0611094",
"authors": [
"V. N. Russkikh",
"Yu. B. Ivanov"
],
"categories": [
"nucl-th",
"hep-ph"
],
"doi": "10.1103/PhysRevC.76.054907",
"journal_ref": "Phys.Rev.C76:054907,2007",
"title": "Dynamical Freeze-out in 3-Fluid Hydrodynamics",
"url": "https://arxiv.org/abs/nucl-th/0611094"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "f528acb2-1fa9-4ca6-91ce-023d968e8435",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}