Centrality Dependence of pi0 and eta Production at Large Transverse Momentum in sqrt(sNN) = 200 GeV d+Au Collisions
Abstract
The dependence of transverse momentum spectra of neutral pions and eta mesons with pT <16 GeV/c and pT < 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 pT and centrality dependence can be observed.
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