Transverse momentum dependence of charged and strange hadron elliptic flows in Cu-Cu collisions

被引：6

作者：

Li, Bao-Chun ^{[1
]}

Fu, Yuan-Yuan ^{[1
]}

Wang, Er-Qin ^{[1
]}

Wang, Li-Li ^{[2
]}

Liu, Fu-Hu ^{[1
]}

机构：

[1] Shanxi Univ, Dept Phys, Taiyuan 030006, Shanxi, Peoples R China

[2] Shanxi Univ, Coll Business, Dept Math, Taiyuan 030031, Shanxi, Peoples R China

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2012年 / 39卷 / 08期

基金：

中国国家自然科学基金;

关键词：

QUARK-GLUON PLASMA; SIGNATURE; STAR;

D O I：

10.1088/0954-3899/39/8/085109

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 investigate the dependence of elliptic flows nu(2) on transverse momentum P-T for charged and strange hadrons produced in Cu-Cu collisions by using a multi-source thermal model, which includes the interaction contribution of the emission sources. The magnitude of the expansion is denoted by a expansion factor k. Our calculated results are approximately in agreement with the experimental data in Cu-Cu collisions at root s(NN) = 62.4 and 200 GeV, measured by the STAR Collaboration. It is found that the expansion factor increases linearly with the impact parameter from the most central (0-10%) to mid-peripheral (40-50%) collisions.

引用

页数：9

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