HAL : in2p3-00151444, version 1
 arXiv : 0705.2511
 Physical Review C 77 (2008) 044908
 Enhanced strange baryon production in Au+Au collisions compared to p+p at $\sqrt{s_{NN}}$ = 200 GeV
 STAR Collaboration(s)
 (2008)
 We report on the observed differences in production rates of strange and multi-strange baryons in Au+Au collisions at sqrts = 200 GeV compared to p+p interactions at the same energy. The yields in Au+Au collisions, when scaled by the number of participants, are larger than those measured in the p+p data. The magnitudes of the differences grow with the strangeness of the baryon and with increasing centrality. The enhancements of the Au+Au yields are close to those measured in sqrts = 17.3 GeV collisions. Further, when the binary scaled p+p pT spectra are compared to those of Au+Au the heavy-ion yields exceed binary scaling in the pT range 1 < pT< 4 GeV/c.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0705.2511
 in2p3-00151444, version 1 http://hal.in2p3.fr/in2p3-00151444 oai:hal.in2p3.fr:in2p3-00151444 Contributeur : Dominique Girod <> Soumis le : Lundi 4 Juin 2007, 13:17:16 Dernière modification le : Mercredi 7 Mai 2008, 13:29:45