Multi-strange Particle Production In Relativistic Heavy Ion Collisions At √snn = 62.4 Gev

We present preliminary STAR results on measurements of multi-strange particles Ξ, Ω and their anti-particles from Au+Au and Cu+Cu at √sNN = 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, the Ω/φ ratio is shown for different systems and energies for a systematic study. © 2010 IOP Publishing Ltd.379Rafelski, J., Müller, B., (1982) Phys. Rev. Lett., 48, p. 1066Antinori, F., (2006) J. Phys. G.: Nucl. Part. Phys., 32, p. 427. , NA57 CollaborationAbelev, B.I., (2008) Phys. Rev. C, 77, p. 044908. , STAR CollaborationAdams, J., (2007) Phys. Rev. Lett., 98, p. 062301. , STAR CollaborationAbelev, B.I., (2009) Phys. Lett. B., 673, p. 183. , STAR CollaborationAbelev, B.I., (2007) Phys. Lett. B., 655, p. 104. , STAR CollaborationAbelev, B.I., (2006) Phys. Rev. Lett., 97, p. 152301. , STAR CollaborationTimmins, A.R., (2009) Nucl. Phys. A, 830, pp. 829c. , STAR CollaborationChen, L.W., Ko, C.M., (2006) Phys. Rev. C, 73, p. 044903Fries, R., Greco, V., Sorensen, P., (2008) Annu. Rev. Nucl. Part. Sci., 58, p. 177Hwa, R.C., Yang, C.B., (2007) Phys. Rev. C, 75, p. 054904Amsler, C., (2008) Phys. Lett. B., 667, p. 1http://wwwasd.web.cern.ch/wwwasd/geantAbelev, B.I., (2009) Phys. Rev. C, 79, p. 034909. , STAR CollaborationWang, X., (2008) J. Phys. G.: Nucl. Part. Phys., 35, p. 104074. , STAR Collaboratio