D-Au作用J/ψ冷核物质作用快度分布特征的研究

Research on feature of rapidity distribution of J/ψ cold nuclear matter in D-Au interactions

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.