arXiv:0907.2723·v1·Nuclear Theory
Rapidity Dependence of Production at RHIC and LHC
Yunpeng Liu🇨🇳 · Zhen Qu🇨🇳 · Nu Xu🇺🇸 · Pengfei Zhuang🇨🇳
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 suppression at forward rapidity compared to that at midrapidity, so called puzzle at RHIC, can well be explained by the competition between the two production mechanisms. At LHC, however, the rapidity dependence of the production is dominated by the regeneration process.
Comments: 4 pages, 2 figures