Measurement of $p$-$Ξ^{-}$ ($\bar{p}$-$\barΞ^{+}$) Correlation Function in Isobar and Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV with the STAR Detector

Abstract: Understanding the strong interactions between baryons, especially hyperon-nucleon ($Y$-$N$) interactions, is crucial for comprehending the equation-of-state (EoS) of the nuclear matter and inner structure of neutron star. In these proceedings, we present the measurements of $p$-$\Xi^{-}$ ($\bar{p}$-$\bar{\Xi}^{+}$) correlation functions with high statistics in Isobar (Ru+Ru, Zr+Zr) and Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200 GeV by the STAR experiment. With the Lednick\'y-Lyuboshitz approach, the source size and strong interaction parameters of $p$-$\Xi^{-}$ ($\bar{p}$-$\bar{\Xi}^{+}$) pairs are extracted.