pi-Xi correlations in d+Au and Au+Au collisions at STAR

Abstract

Qualitative comparison of source sizes from pi-Xi correlations analyses in d+Au and Au+Au collisions at sqrt(s_NN)=200G GeV and sqrt(s_NN)=62 GeV is presented. For the most central Au+Au collisions at sqrt(s_NN)=200 GeV we report first quantitative results concerning size of the pi-Xi source and relative shift of the average emission points between pi and Xi showing that the homogeneity region of Xi source is smaller then that of pion and significantly shifted in the transverse direction.Comment: prepared for the poster-session proceedings of the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (QM2006