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.
基金
Supported by National Natural Science Foundation of China(NSFC) projects (Nos.11075027 and 11275037)
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
Hydrodynamic source, Fluctuating initial condition, Interferometry signature, Event-by-event analysis