Centrality Dependence of pi^0 and eta Production at Large Transverse Momentum in sqrt(s_NN) = 200 GeV d+Au Collisions

et al; PHENIX Collaboration; S.S. Adler

arxiv: nucl-ex/0610036 · v1 · submitted 2006-10-24 · ⚛️ nucl-ex

Centrality Dependence of pi⁰ and eta Production at Large Transverse Momentum in sqrt(s_NN) = 200 GeV d+Au Collisions

PHENIX Collaboration , S.S. Adler , et al This is my paper

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keywords collisionscentralitydependencesqrtmeasuredmomentumrhicsuppression

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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.

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