298 articles – 2321 Notices  [english version]
 HAL : in2p3-00184627, version 1
 arXiv : 0708.2416
 Physical Review C 77 (2007) 014905
 Centrality dependence of charged hadron production in deuteron+gold and nucleon+gold collisions at $\sqrt{s_{NN}}$=200 GeV
 PHENIX Collaboration(s)
 (2007)
 We present transverse momentum (p_T) spectra of charged hadrons measured in deuteron-gold and nucleon-gold collisions at \sqrts = 200 GeV for four centrality classes. Nucleon-gold collisions were selected by tagging events in which a spectator nucleon was observed in one of two forward rapidity detectors. The spectra and yields were investigated as a function of the number of binary nucleon-nucleon collisions, \nu, suffered by deuteron nucleons. A comparison of charged particle yields to those in p+p collisions show that the yield per nucleon-nucleon collision saturates with \nu for high momentum particles. We also present the charged hadron to neutral pion ratios as a function of p_T.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 Lien vers le texte intégral : http://fr.arXiv.org/abs/0708.2416
 in2p3-00184627, version 1 http://hal.in2p3.fr/in2p3-00184627 oai:hal.in2p3.fr:in2p3-00184627 Contributeur : Dominique Girod <> Soumis le : Mercredi 31 Octobre 2007, 15:07:25 Dernière modification le : Samedi 26 Janvier 2008, 11:55:14