Abstract
We present preliminary STAR results on measurements of multi-strange particles Ξ, Ω and their anti-particles from Au+Au and Cu+Cu at GeV collisions. In order to better understand the role of strangeness enhancement in nucleus–nucleus collisions and its scaling properties with system size, we compare the results from Au+Au and Cu+Cu reactions for different event centrality classes. Strangeness enhancement is discussed in the context of multi-strange to pion ratios. Finally, the Ω/ϕ ratio is shown for different systems and energies for a systematic study.
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