Speaker
Description
Femtoscopy is a powerful technique used to investigate the emission source and interaction potential between pairs of particles. The two-particle correlation function, which reveals valuable information about the space-time evolution of the emitting source and final state interaction, is the primary observable of interest. A detailed knowledge of hyperon-nucleon (Y-N) interaction is important for understanding the equation of state of neutron star. In high energy heavy-ion collisions, a large number of particles including hyperons are produced, which offers the great opportunity to study those interactions via femtoscopic measurements.
In this talk, we present the measurements of p-$\Xi^{-}$ correlations with high statistics in Isobar collisions (Ru+Ru, Zr+Zr) at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV by the STAR experiment. By employing Lednicky-Lyuboshitz approach, the scattering length ($f_{0}$) and effective range ($d_{0}$) of proton and $\Xi^{-}$ interactions are extracted. Results from Au+Au collisions at the same energy will be used for comparison. In addition, these parameters will be compared to those from Lattice QCD calculations.
