Source function extracted from single-event HBT correlation functions of hydrodynamical sources  

作　　者：胡颖 冯可心 张卫宁 

机构地区：[1]School of Physics and Optoelectronic Technology, Dalian University of Technology [2]Department of Physics, Harbin Institute of Technology

出　　处：《Chinese Physics C》2014年第4期19-24,共6页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11075027,11275037)

摘　　要：We investigate the single-event two-pion correlation functions for the hydrodynamic particle-emitting sources with the fluctuating initial conditions generated by the Heavy Ion Jet Interaction Generator （HIJING）. Using a three-dimension fast Fourier transform （FFT）, we further extract the source functions from the single-event correlation functions. It is found that the inhomogeneity of the hydrodynamic sources with the fluctuating initial conditions lead to event-by-event fluctuations of the correlation functions and source functions.We investigate the single-event two-pion correlation functions for the hydrodynamic particle-emitting sources with the fluctuating initial conditions generated by the Heavy Ion Jet Interaction Generator （HIJING）. Using a three-dimension fast Fourier transform （FFT）, we further extract the source functions from the single-event correlation functions. It is found that the inhomogeneity of the hydrodynamic sources with the fluctuating initial conditions lead to event-by-event fluctuations of the correlation functions and source functions.

关 键 词：single-event two-pion correlation function source function fast Fourier transform hydrodynamicsource fluctuating initial condition 

分 类 号：O572.241[理学—粒子物理与原子核物理]