Measurement of $p$-${\Xi }^{-}$ ($\bar{p}$-${\bar{\Xi }}^{+}$) 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 Lednický-Lyuboshitz approach, the source size and strong interaction parameters of $p$-${\Xi }^{-}$ ($\bar{p}$-${\bar{\Xi }}^{+}$) pairs are extracted.

Comments: 4 pages, 4 figures, Proceedings of SQM 2024