HAL : in2p3-00525741, version 1
 arXiv : 1010.0142
 Physical Review C 83 (2011) 024901
 Strange and Multi-strange Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
 STAR Collaboration(s)
 (2011)
 We present results on strange and multi-strange particle production in Au+Au collisions at $\sqrt{s_{NN}}=62.4$ GeV as measured with the STAR detector at RHIC. Mid-rapidity transverse momentum spectra and integrated yields of $K^{0}_{S}$, $\Lambda$, $\Xi$, $\Omega$ and their anti-particles are presented for different centrality classes. The particle yields and ratios follow a smooth energy dependence. Chemical freeze-out parameters, temperature, baryon chemical potential and strangeness saturation factor obtained from the particle yields are presented. Intermediate transverse momentum ($p_T$) phenomena are discussed based on the ratio of the measured baryon-to-meson spectra and nuclear modification factor. The centrality dependence of various measurements presented show a similar behavior as seen in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV.
 Thème(s) : Physique/Physique des Hautes Energies - ExpériencePhysique/Physique Nucléaire Expérimentale
 Lien vers le texte intégral : http://fr.arXiv.org/abs/1010.0142
 in2p3-00525741, version 1 http://hal.in2p3.fr/in2p3-00525741 oai:hal.in2p3.fr:in2p3-00525741 Contributeur : Dominique Girod <> Soumis le : Mardi 12 Octobre 2010, 15:42:40 Dernière modification le : Jeudi 21 Avril 2011, 15:35:06