HAL : in2p3-00159389, version 1
 arXiv : nucl-ex/0610036
 Physical Review Letters 98 (2007) 172302
 Centrality Dependence of $\pi^0$ and $\eta$ Production at Large Transverse Momentum in $\sqrt{s_{NN}}$ = 200 GeV d+Au Collisions
 PHENIX Collaboration(s)
 (2007)
 The dependence of transverse momentum spectra of neutral pions and eta mesons with p_T <16 GeV/c and p_T < 12 GeV/c, respectively, on the centrality of the collision has been measured at mid-rapidity by the PHENIX experiment at RHIC in d+Au collisions at sqrt(s_(NN)) = 200 GeV. The measured yields are compared to those in p + p collisions at the same sqrt(s_(NN)) scaled by the number of underlying nucleon-nucleon collisions in d+Au. At all centralities the yield ratios show no suppression, in contrast to the strong suppression seen for central Au+Au collisions at RHIC. Only a weak p_T and centrality dependence can be observed.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 Lien vers le texte intégral : http://fr.arXiv.org/abs/nucl-ex/0610036
 in2p3-00159389, version 1 http://hal.in2p3.fr/in2p3-00159389 oai:hal.in2p3.fr:in2p3-00159389 Contributeur : Dominique Girod <> Soumis le : Mardi 3 Juillet 2007, 10:37:58 Dernière modification le : Lundi 9 Juillet 2007, 11:53:40