Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

3-14-2013

Journal or Book Title

Physical Review C

Volume

87

Issue

3

First Page

034904

DOI

10.1103/PhysRevC.87.034904

Abstract

We present measured J/psi production rates in d + Au collisions at root s(NN) = 200 GeV over broad ranges of transverse momentum (p(T) = 0-14 GeV/c) and rapidity (-2.2 < y < 2.2). We construct the nuclear-modification factor R-dAu 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 (R-dAu < 1) for p(T) < 4 GeV/c at positive rapidities. At negative rapidity we observe a suppression for p(T) < 2 GeV/c then an enhancement (R-dAu > 1) for p(T) > 2 GeV/c. The observed enhancement at negative rapidity has implications for the interpretation of the observed modification in heavy-ion collisions at high p(T).

Comments

This is an article from Physical Review C 87 (2013): 034904-1, doi:10.1103/PhysRevC.87.034904. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

Included in

Nuclear Commons

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