Strangeness production in nucleus–nucleus collisions at high Baryon density

In low energy nuclear collisions, especially near the strangeness nucleon-nucleon production threshold, strange hadrons serve as sensitive probes for extracting the information on the nuclear equation of state of the dense medium formed in such reactions. In this paper, we will give a brief review on recent measurements of strangeness production in Au + Au collisions at √sNN= s NN = 3 GeV with the STAR experiment fixed target configuration at RHIC, including results for K⁻ K - , K⁰S K S 0 , Λ Λ , φ ϕ and Ξ ⁻ Ξ - .The focus is placed on particle yields and yield ratios, and their dependence on collision centrality and collision energy. These results are compared to predictions from thermal model and hadronic transport models, offering insights into the strangeness production mechanism and the properties of the medium at high baryon density.