Multi-strange baryons are expected to carry important information about the partonic matter created in the early stages of heavy-ions collisions at RHIC[1]. I will present the latest results on pi-Xi and proton-Xi correlations in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV and 62 GeV, for different centralities, measured by STAR experiment. Non-identical particle correlations technique relies on the final state Coulomb and strong interaction between Xi and the hadron. In the case of pi-Xi system the correlation function is dominated by Xi*(1530) resonance which is highly sensitive to the source size in all studied systems. We utilize a novel technique of decomposition of the correlation function into spherical harmonics to study not only the space-time extent of the the emission source but also the emission asymmetry between the Xi and other hadrons. Since this asymmetry may arise from the collective expansion and/or early decoupling of Xis these measuremen!
ts provide important test of the dynamics of heavy-ion collisions.
[1] J. Adams et al.,Nucl.Phys.A757:102-183,2005