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Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at root(NN)-N-S=200 GeV
Sanders, Stephen J.
Sanders, Stephen J.
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Abstract
We report on a study of the transverse momentum dependence of nuclear modification factors R-dAu for charged hadrons produced in deuteron + gold collisions at roots(NN) = 200 GeV, as a function of collision centrality and of the pseudorapidity (eta=0, 1, 2.2, 3.2) of the produced hadrons. We find a significant and systematic decrease of R-dAu 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.
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2004-12-10
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AMERICAN PHYSICAL SOC
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Sanders, Stephen J. Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at root(NN)-N-S=200 GeV. PHYSICAL REVIEW LETTERS. DEC 10 2004. 93(24).