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arXiv · 0810.4566

Forward and midrapidity charmonium production at RHIC

Xingbo Zhao·Ralf Rapp
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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 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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Xingbo Zhao, Ralf Rapp. 2008-10-25. Forward and midrapidity charmonium production at RHIC. https://doi.org/10.1140/epjc%2Fs10052-009-0905-6

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