System size dependence of strange hadron elliptic flow from Au plus Au and Cu plus Cu collisions

被引：2
|
作者：
Lu, Y. [1 ]
机构：
[1] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China
来源：
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2008年 / 35卷 / 10期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1088/0954-3899/35/10/104055
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We present STAR results on elliptic flow upsilon(2) of strange and multi-strange particles from root(NN)-N-S = 200 GeV Au + Au and Cu + Cu collisions at RHIC. For each centrality of Au + Au and Cu + Cu collisions, we observe the transverse kinetic energy (m(T) - m) scaling at low p(T) and number-of-quark (n(q)) scaling at intermediate p(T). Larger upsilon(2)/epsilon(part) values are observed in more central collisions and in the systems with the larger colliding size, indicating that collective flow is stronger in more central collisions and in the systems with the larger colliding size.
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页数：4
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