Phys. Rev. Lett. 93, 242303 (2004) [4 pages]Evolution of the Nuclear Modification Factors with Rapidity and Centrality in d+Au Collisions at √NSN=200 GeVReceived 4 March 2004; revised 27 August 2004; published 10 December 2004 We report on a study of the transverse momentum dependence of nuclear modification factors RdAu for charged hadrons produced in deuteron + gold collisions at √sNN=200 GeV, as a function of collision centrality and of the pseudorapidity (η=0, 1, 2.2, 3.2) of the produced hadrons. We find a significant and systematic decrease of RdAu with increasing rapidity. The midrapidity enhancement and the forward rapidity suppression are more pronounced in central collisions relative to peripheral collisions. These results are relevant to the study of the possible onset of gluon saturation at energies reached at BNL RHIC. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.242303
DOI:
10.1103/PhysRevLett.93.242303
PACS:
25.75.Dw, 13.85.Hd, 24.85.+p
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