Speaker
Description
Geometry and dynamics of the particle-emitting source in heavy-ion collisions can be inferred via the femtoscopy method. Two-particle correlations at small relative momentum exploit Quantum Statistics (QS) and the Final State Interactions (FSI), which allow one to study the space-time characteristics of the source of the order of $10^{−15}$ m and $10^{−23}$ s. Femtoscopic measurements allow one also to explore FSI, especially the Strong one, which is unknown for many two-particle systems. The RHIC program covers a significant part of the QCD Phase Diagram using collisions of Au nuclei for several beam energies from 7.7 to 200 GeV which baryon-rich region is studied via femtoscopy. These measurements complement those obtained from AGS, SPS, and SIS experiments. Strange hadron measurements together with non-strange ones provide complementary information about source characteristics. Strangeness is a significant observable for many regimes of collision energies. Two-particle correlations that include strange particles offer essential information regarding strangeness production in heavy-ion collisions at different collision energies. In addition, the results of non-identical particles enable studies of space-time asymmetries in the emission process.
This talk shows the femtoscopic measurements of various strange particle combinations at different collision energies and centralities.
