Interferometry signatures of hydrodynamic sources with fluctuating initial conditions  

作　　者：HU Ying SU Zhongqian ZHANG Weining 

机构地区：[1]School of Physics and Optoelectronic Technology,Dalian University of Technology

出　　处：《Nuclear Science and Techniques》2013年第5期117-121,共5页核技术（英文）

基　　金：Supported by National Natural Science Foundation of China(NSFC) projects (Nos.11075027 and 11275037)

摘　　要：We investigate the space-time evolution of the hydrodynamic particle-emitting sources with the fluctuating initial conditions generated by Heavy Ion Jet Interaction Generator(HIJING).In order to detect the event-by-event inhomogeneity of the sources,we examine the distribution of the error-inverse-weighted fluctuations,f,between the two-pion Bose-Einstein correlation functions of single and mixed events.We find that the distribution of f becomes wide for the fluctuating initial conditions.The large values of the distribution width and the root-mean-square frms are the signatures of the hydrodynamic particle-emitting sources with the fluctuating initial conditions.We investigate the space-time evolution of the hydrodynamic particle-emitting sources with the fluctuating initial conditions generated by Heavy Ion Jet Interaction Generator （HIJ1NG）. In order to detect the event-by-event inhomogeneity of the sources, we examine the distribution of the error-inverse-weighted fluctuations, f between the two-pion Bose-Einstein correlation functions of single and mixed events. We find that the distribution of f becomes wide for the fluctuating initial conditions. The large values of the distribution width and the root-mean-squarefrms are the signatures of the hydrodynamic particle-emitting sources with the fluctuating initial conditions.

关 键 词：波动 签名 水动力 流体动力学 粒子发射源 干涉 时空演变 相互作用 

分 类 号：O571.6[理学—粒子物理与原子核物理]