The Research Of Two-Proton Correlations And Interaction In RHIC Low Energy

A major goal of relativistic heavy ion collisions is to extract information aboutproperties of nuclear matter at high density and high temperature ,i.e, and to obtainthe nuclear equation of state.Its main goal is to prove the existence of the QGP. Butnow, the people can not directly detect it,so it is only through analysis of the freeze-out particles state information,with a correlation analysis can get the size of the sourceand life time and other important information.The two-proton correlation is an important means to study the source informa-tion in the high heavy-ion collisions.Now the STAR collaboration of the RHIC is do-ing the lower collision energy region scanned,mainly in order to detect the existenceof QGP.The article will use RQMD model to simulate RHIC low energy ,we analysisthe correlations and the source information.In this article ,we mainly analysis the 5-40GeV Au+Au collisions at RHIC. Atfirst ,we analysis of the freeze out of the distribution of particles and the proton corre-lation.We start from the Gauss source analysis to get the main features of proton cor-relations,the analysis of simulated data proton correlations which comes from RQMDmodel,not only analysis the different correlations in the energy,but also discuss theradius of the source dependence for the transverse momentum and study the sourceof coherent parameter.At last,we use the Imaging technology to get emission functionof the source, from that we can know the source emission information more clearly,sothat we can have a better understanding of the dynamics of particles generated infor-mation.