On the structure of the particle source in ultrarelativistic nuclear collisions

In previous work some evidences were given for particle source structures. In the present work we use simulation with HIJING code to analyze the possibility to find such structures in Au-Au collisions at RHIC - BNL available energies. We used the program CRAB (Scott Pratt from Michigan State University, USA). For different impact parameters we calculate the correlation function. A few peaks in correlation function are observed. For these peaks we analyzed the correlation function by fitting with some adequate functions. We can conclude that there are conditions that in Au-Au collision at CMS energies between 56 A GeV and 200 A GeV the particle source has internal structure. The correlation function offers information on the space-time characteristics of the particle source, too. (authors)