Two-particle azimuthal angle correlations and azimuthal charge balance function in relativistic heavy ion collisions

	Two-particle azimuthal angle correlations and azimuthal charge balance function in relativistic heavy ion collisions
	Huang YP(黄燕萍); Huang, YP; Na, L; Du, JX; Li, ZM; Wu, YF
刊名	PHYSICAL REVIEW C
	2009
卷号	79 期号:5 页码:54912
通讯作者	[Huang, Yanping] CAS, Inst High Energy Phys, Beijing 100049, Peoples R China ; [Huang, Yanping] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China ; [Huang, Yanping ; Na, Li ; Du, Jiaxin ; Li, Zhiming ; Wu, Yuanfang] Hua Zhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China
英文摘要	The two-particle azimuthal angle correlation (TPAC) and azimuthal charge balance function (ACBF) are used to study the anisotropic expansion in relativistic heavy ion collisions. It is demonstrated by the relativistic quantum molecular dynamics (RQMD) model and a multi-phase transport (AMPT) model that the small-angle correlation in TPAC indeed presents anisotropic expansion, and the large-angle (or back-to-back) correlation is mainly due to global momentum conservations. The AMPT model reproduces the observed TPAC, but the RQMD model fails to reproduce the strong correlations in both small and large azimuthal angles. The width of ACBF from RQMD and AMPT models decreases from peripheral to central collisions, consistent with experimental data, but in contrast to the expectation from thermal model calculations. The ACBF is insensitive to anisotropic expansion. It is a probe for the mechanism of hadronization, similar to the charge balance function in rapidity.
学科主题	Physics
类目[WOS]	Physics, Nuclear
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000266501700076
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240682]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Huang YP,Huang, YP,Na, L,et al. Two-particle azimuthal angle correlations and azimuthal charge balance function in relativistic heavy ion collisions[J]. PHYSICAL REVIEW C,2009,79(5):54912.
APA	黄燕萍,Huang, YP,Na, L,Du, JX,Li, ZM,&Wu, YF.(2009).Two-particle azimuthal angle correlations and azimuthal charge balance function in relativistic heavy ion collisions.PHYSICAL REVIEW C,79(5),54912.
MLA	黄燕萍,et al."Two-particle azimuthal angle correlations and azimuthal charge balance function in relativistic heavy ion collisions".PHYSICAL REVIEW C 79.5(2009):54912.