| Original Articles |
|
|
|
|
Effects of Surface Emitting and Cumulative Collisions on Elliptic Flow |
| LIU Jian-Li;WU Feng-Juan;ZHANG Jing-Bo;TANG Gui-Xin;HUO Lei |
| Department of Physics, Harbin Institute of Technology, Harbin 150001 |
|
| Cite this article: |
|
LIU Jian-Li, WU Feng-Juan, ZHANG Jing-Bo et al 2008 Chin. Phys. Lett. 25 892-895 |
|
|
|
Abstract The integral and differential elliptic flow of partons is calculated using the multiphase transport model for Au+Au collisions at centre-of-mass energy
√sNN=200GeV. It is shown that elliptic flow of partons freezing out at early time, which is affected mainly by surface emittance, decreases with time and elliptic flow of partons freezing out at late time, which is dominated by cumulative collisions, increases with time. The elliptic flow of partons freezing out early has a large contribution to the flatting of curve of final differential elliptic flow at large transverse momentum. It is argued that the effect of surface emittance is not neglectable.
|
| Keywords:
25.75.Ld
25.75.Nq
25.75.-q
|
|
|
Received: 26 October 2007
Published: 27 February 2008
|
|
| PACS: |
25.75.Ld
|
(Collective flow)
|
| |
25.75.Nq
|
(Quark deconfinement, quark-gluon plasma production, and phase transitions)
|
| |
25.75.-q
|
(Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions))
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
