CSR能区UU碰撞侧向流蒙特卡罗模拟与研究

来源 :高能物理与核物理 | 被引量 : 0次 | 上传用户：brianwang1982

【摘要】

：

应用ART模型研究了Eb=520MeV/u的UU碰撞.探讨了在两种极端方位UU碰撞下,核子和π在反应平面内的横向流的时间演化以及对碰撞中心度的依赖关系.研究表明,流在高密区域发展并且

【作者】

：

吴科军刘峰

【机构】

：

华中师范大学粒子物理研究所

【出处】

：

高能物理与核物理

【发表日期】

：

2004年期

【关键词】

：

平均场形变横向流遮蔽 mean field deformation transverse flow shadowing

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应用ART模型研究了Eb=520MeV/u的UU碰撞.探讨了在两种极端方位UU碰撞下,核子和π在反应平面内的横向流的时间演化以及对碰撞中心度的依赖关系.研究表明,流在高密区域发展并且在膨胀相稳定,因而它是高密区域反应动力学的一个敏感探针.对头头和体体UU碰撞,末态π相对于核子的横向流分别在大约b=9fm和b=2fm处存在明显的正向到负向的改变.π的这种行为是重子共振态和旁观者的遮蔽效应(再散射和再吸收)共同作用的结果.

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CSR能区UU碰撞侧向流蒙特卡罗模拟与研究

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