dorsal/arxiv
View SchemaElliptic flow and incomplete equilibration at RHIC
| Authors | R. S. Bhalerao, J. -P. Blaizot, N. Borghini, J. -Y. Ollitrault |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0508009 |
| URL | https://arxiv.org/abs/nucl-th/0508009 |
| DOI | 10.1016/j.physletb.2005.08.131 |
| Journal | Phys.Lett.B627:49-54,2005 |
Abstract
We argue that RHIC data, in particular those on the anisotropic flow coefficients v_2 and v_4, suggest that the matter produced in the early stages of nucleus-nucleus collisions is incompletely thermalized. We interpret the parameter (1/S)(dN/dy), where S is the transverse area of the collision zone and dN/dy the multiplicity density, as an indicator of the number of collisions per particle at the time when elliptic flow is established, and hence as a measure of the degree of equilibration. This number serves as a control parameter which can be varied experimentally by changing the system size, the centrality of the collision, or the beam energy. We provide predictions for Cu-Cu collisions at RHIC as well as for Pb-Pb collisions at the LHC.
{
"annotation_id": "b834965e-4f41-478e-9f6e-83dcac932281",
"date_created": "2026-03-02T18:00:04.861000Z",
"date_modified": "2026-03-02T18:00:04.861000Z",
"file_hash": "7e3d1339ec5b6da3eb1ae9d74fdd552a6e03bf5f5364890bdf4097e516dd879f",
"private": false,
"record": {
"abstract": "We argue that RHIC data, in particular those on the anisotropic flow\ncoefficients v_2 and v_4, suggest that the matter produced in the early stages\nof nucleus-nucleus collisions is incompletely thermalized. We interpret the\nparameter (1/S)(dN/dy), where S is the transverse area of the collision zone\nand dN/dy the multiplicity density, as an indicator of the number of collisions\nper particle at the time when elliptic flow is established, and hence as a\nmeasure of the degree of equilibration. This number serves as a control\nparameter which can be varied experimentally by changing the system size, the\ncentrality of the collision, or the beam energy. We provide predictions for\nCu-Cu collisions at RHIC as well as for Pb-Pb collisions at the LHC.",
"arxiv_id": "nucl-th/0508009",
"authors": [
"R. S. Bhalerao",
"J. -P. Blaizot",
"N. Borghini",
"J. -Y. Ollitrault"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/j.physletb.2005.08.131",
"journal_ref": "Phys.Lett.B627:49-54,2005",
"title": "Elliptic flow and incomplete equilibration at RHIC",
"url": "https://arxiv.org/abs/nucl-th/0508009"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "199218a7-fd7d-4ad4-947c-1bf288053810",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}