在DKLMT模型基础上,引入描述冷核物质作用的核几何作用函数f(ξ),讨论RHIC能区D-Au碰撞形成单态J/ψ产物机制,给出了核修正因子(RD-Au)随快度的变化关系,并能较好解释RHIC能区的快度分布特征。
Basing on DKLMT model, we introduce a kind of nuclear geometric interaction function f(ξ) to study the cold nuclear matter (CNM) effects on the color singlet J/ψ production in D-Au collisions at RHIC. The dependencies of nuclear modification factors (RD-Au) on rapidity are studied. The results are fit well with the experimental data of D-Au interactions at RHIC.