Multi-strange particle production in relativistic heavy ion collisions at $\sqrt{s_{NN}}=62.4$ GeV

Details Multi-strange particle production in relativistic heavy ion collisions at $\sqrt{s_{NN}}=62.4$ GeV Multi-strange particle production in relativistic heavy ion collisions at $\sqrt{s_{NN}}=62.4$ GeV

2010-01-18

arxiv.org/abs/1001.3119v2

J.Phys.G37:094034,2010

Physics

Nuclear Physics

Nuclear Experiment

Scientific paper

10.1088/0954-3899/37/9/094034

We present preliminary STAR results on measurements of multi-strange particles $\Xi$, $\Omega$ and their anti-particles from Au+Au and Cu+Cu at $\sqrt{s_{NN}}=62.4$ 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, $\Omega/\phi$ ratio is shown for different systems and energies for a systematic study.

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