| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10722196 | Physics Letters B | 2009 | 5 Pages |
Abstract
The transverse momentum (pt) dependence of J/Ï production in heavy ion collisions is investigated in a transport model with both initial production and continuous regeneration of charmonia. The competition between the two production mechanisms results in a pt suppression in central collisions, the gluon multi-scattering in the initial stage leads to a high pt enhancement, and the regeneration populates J/Ïs at low pt region and induces a minimum in RAA(pt). These three phenomena are indeed observed in both 200 GeV Cu + Cu and Au + Au collisions at RHIC energy.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Yunpeng Liu, Zhen Qu, Nu Xu, Pengfei Zhuang,