Transverse-momentum dependence of the J/ψ nuclear modification in d+Au collisions at √sNN=200 GeV

PHENIX Collaboration

Research output: Contribution to journalArticlepeer-review

79 Scopus citations

Abstract

We present measured J/ψ production rates in d+Au collisions at √sNN=200 GeV over broad ranges of transverse momentum (pT=0-14 GeV/c) and rapidity (-2.2<y<2.2). We construct the nuclear-modification factor RdAu for these kinematics and as a function of collision centrality (related to impact parameter for the d+Au collision). We find that the modification is largest for collisions with small impact parameters and observe a suppression (RdAu<1) for pT<4 GeV/c at positive rapidities. At negative rapidity we observe a suppression for pT<2 GeV/c then an enhancement (R dAu>1) for pT>2 GeV/c. The observed enhancement at negative rapidity has implications for the interpretation of the observed modification in heavy-ion collisions at high pT.

Original languageEnglish
Article number034904
JournalPhysical Review C - Nuclear Physics
Volume87
Issue number3
DOIs
StatePublished - 14 Mar 2013
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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