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arXiv · 0907.2723

Rapidity Dependence of $J/ψ$ Production at RHIC and LHC

Yunpeng Liu·Zhen Qu·Nu Xu·Pengfei Zhuang
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Abstract

The motion of charmonium in heavy ion collisions is described by a three dimensional transport equation with initial production and continuous regeneration in hot medium. The observation of apparently stronger $J/ψ$ suppression at forward rapidity compared to that at midrapidity, so called $J/ψ$ puzzle at RHIC, can well be explained by the competition between the two production mechanisms. At LHC, however, the rapidity dependence of the $J/ψ$ production is dominated by the regeneration process.

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Yunpeng Liu, Zhen Qu, Nu Xu, Pengfei Zhuang. 2009-07-16. Rapidity Dependence of $J/ψ$ Production at RHIC and LHC. https://doi.org/10.1088/0954-3899%2F37%2F7%2F075110

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