Nuclear modification of ψ, χc, and J/ψ production in d+Au collisions at √sNN=200 GeV

PHENIX Collaboration

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103 Scopus citations


We present results for three charmonia states (ψ, χc, and J/ψ) in d+Au collisions at |y|<0.35 and √sNN=200 GeV. We find that the modification of the ψ yield relative to that of the J/ψ scales approximately with charged particle multiplicity at midrapidity across p+A, d+Au, and A+A results from the Super Proton Synchrotron and the Relativistic Heavy Ion Collider. In large-impact-parameter collisions we observe a similar suppression for the ψ and J/ψ, while in small-impact-parameter collisions the more weakly bound ψ is more strongly suppressed. Owing to the short time spent traversing the Au nucleus, the larger ψ suppression in central events is not explained by an increase of the nuclear absorption owing to meson formation time effects.

Original languageEnglish
Article number202301
JournalPhysical Review Letters
Issue number20
StatePublished - 12 Nov 2013
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (all)


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