dorsal/arxiv
View SchemaPartonic effects on higher-order anisotropic flows in relativistic heavy-ion collisions
| Authors | Lie-Wen Chen, C. M. Ko, Zi-Wei Lin |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0312124 |
| URL | https://arxiv.org/abs/nucl-th/0312124 |
| DOI | 10.1103/PhysRevC.69.031901 |
| Journal | Phys.Rev. C69 (2004) 031901 |
Abstract
Higher-order anisotropic flows $v_{4}$ and $v_{6}$ in heavy ion collisions at the Relativistic Heavy Ion Collider are studied in a multiphase transport model that has previously been used successfully for describing the elliptic flow $v_2$ in these collisions. We find that the same parton scattering cross section of about 10 \textrm{mb} used in explaining the measured $v_2$ can also reproduce the recent data on $v_{4}$ and $v_{6}$ from Au + Au collisions at $\sqrt{s}=200$ \textrm{AGeV}. It is further found that the $% v_{4}$ is a more sensitive probe of the initial partonic dynamics in these collisions than $v_{2}$. Moreover, higher-order parton anisotropic flows are nonnegligible and satisfy the scaling relation $v_{n,q}(p_{T})\sim v_{2,q}^{n/2}(p_{T})$, which leads naturally to the observed similar scaling relation among hadron anisotropic flows when the coalescence model is used to describe hadron production from the partonic matter.
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"abstract": "Higher-order anisotropic flows $v_{4}$ and $v_{6}$ in heavy ion collisions at\nthe Relativistic Heavy Ion Collider are studied in a multiphase transport model\nthat has previously been used successfully for describing the elliptic flow\n$v_2$ in these collisions. We find that the same parton scattering cross\nsection of about 10 \\textrm{mb} used in explaining the measured $v_2$ can also\nreproduce the recent data on $v_{4}$ and $v_{6}$ from Au + Au collisions at\n$\\sqrt{s}=200$ \\textrm{AGeV}. It is further found that the $% v_{4}$ is a more\nsensitive probe of the initial partonic dynamics in these collisions than\n$v_{2}$. Moreover, higher-order parton anisotropic flows are nonnegligible and\nsatisfy the scaling relation $v_{n,q}(p_{T})\\sim v_{2,q}^{n/2}(p_{T})$, which\nleads naturally to the observed similar scaling relation among hadron\nanisotropic flows when the coalescence model is used to describe hadron\nproduction from the partonic matter.",
"arxiv_id": "nucl-th/0312124",
"authors": [
"Lie-Wen Chen",
"C. M. Ko",
"Zi-Wei Lin"
],
"categories": [
"nucl-th",
"hep-ex",
"hep-ph",
"nucl-ex"
],
"doi": "10.1103/PhysRevC.69.031901",
"journal_ref": "Phys.Rev. C69 (2004) 031901",
"title": "Partonic effects on higher-order anisotropic flows in relativistic heavy-ion collisions",
"url": "https://arxiv.org/abs/nucl-th/0312124"
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