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Forward and midrapidity charmonium production at RHIC

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Abstract

J/ψ production at forward and midrapidity at the Relativistic Heavy-Ion Collider (RHIC) is calculated within a previously constructed rate-equation approach accounting for both direct production and regeneration from c and \(\bar{c}\) . The results are compared to the experimental data. The observed stronger suppression at forward rapidity can be qualitatively explained by a smaller statistical regeneration component together with stronger cold nuclear matter induced suppression compared to midrapidity. The χ c over J/ψ ratio and ψ′ over J/ψ ratio are also calculated.

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Authors and Affiliations

  1. Cyclotron Institute and Physics Department, Texas A&M University, College Station, TX, 77843-3366, USA

    Xingbo Zhao & Ralf Rapp

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  1. Xingbo Zhao
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  2. Ralf Rapp
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Correspondence to Xingbo Zhao.

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Zhao, X., Rapp, R. Forward and midrapidity charmonium production at RHIC. Eur. Phys. J. C 62, 109–117 (2009). https://doi.org/10.1140/epjc/s10052-009-0905-6

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  • DOI: https://doi.org/10.1140/epjc/s10052-009-0905-6

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