Two-pion interferometry in heavy ion collisions at HIRFL-CSR energy

	Two-pion interferometry in heavy ion collisions at HIRFL-CSR energy
	Yu Li-Li 1; Jirimutu 1; Zhang Wei-Ning 1,2,3; Huo Lei 1; Zhang Jing-Bo 1
刊名	CHINESE PHYSICS C
	2008-11-01
卷号	32 页码:897-902
关键词	two-pion interferometry HIRFL-CSR energy particle decay multiple scattering
ISSN号	1674-1137
英文摘要	We examine the two-pion Hanbury-Brown-Twiss (HBT) interferometry for the particle-emitting source produced in heavy ion collisions at HIRFL-CSR energy. The source evolution is described by relativistic hydrodynamics with three kinds of equations of state for chemical equilibrium (CE), chemical freeze-out (CFO), and partial chemical equilibrium (PCE) models, respectively. We investigate the effects of particle decay, multiple scattering, and source collective expansion on the two-pion interferometry results. We find that the HBT radii of the evolution source for the CFO and PCE models are smaller than that for the CE model. The HBT lifetime for the CFO model is smaller than those for the PCE and CE models. The particle decay increases the HBT radius and lifetime while the source expansion decreases the HBT radius. The multiple scattering effect on the HBT results can be neglected based on our model calculations.
资助项目	National Natural Science Foundation of China[10575024] ; National Natural Science Foundation of China[10775024]
WOS关键词	GLUON PLASMA FORMATION ; PION INTERFEROMETRY ; INTENSITY INTERFEROMETRY ; MULTIPION CORRELATIONS ; COLLECTIVE FLOW ; HYDRODYNAMICS ; SCATTERING
WOS研究方向	Physics
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000260521200010
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/29945]
专题	中国科学院近代物理研究所
通讯作者	Yu Li-Li
作者单位	1.Harbin Inst Technol, Dept Phys, Harbin 150006, Peoples R China 2.Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China 3.Natl Lab Heavy Ion Accelerator Lanzhou, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Yu Li-Li,Jirimutu,Zhang Wei-Ning,et al. Two-pion interferometry in heavy ion collisions at HIRFL-CSR energy[J]. CHINESE PHYSICS C,2008,32:897-902.
APA	Yu Li-Li,Jirimutu,Zhang Wei-Ning,Huo Lei,&Zhang Jing-Bo.(2008).Two-pion interferometry in heavy ion collisions at HIRFL-CSR energy.CHINESE PHYSICS C,32,897-902.
MLA	Yu Li-Li,et al."Two-pion interferometry in heavy ion collisions at HIRFL-CSR energy".CHINESE PHYSICS C 32(2008):897-902.