标题： α粒子(5GeV/u)与金的反应中的多碎片化 显示英文标题

标题： Multifragmentation in alpha(5GeV/u) + Au Reactions

摘要： 我们使用简化的RQMD方法模拟在5 GeV/u入射能量下\alAu 碰撞中的碎片化过程。 统计衰变计算被连接以获得最终状态。 从模拟中我们发现，由该碰撞产生的剩余核具有环形椭圆形状，并随后比束流方向更强烈地向横向扩展。 然后，中等质量碎片的角度分布具有侧向峰；这一结果解释了实验结果。 显示英文摘要

摘要： We simulate the fragmentation processes in the \alAu collisions at the bombarding energy 5 GeV/u using the simplified RQMD approach. The statistical decay calculation is connected to obtain the final state. >From the simulation we find that the residual nucleus created by this collision has a annular eclipse shape, and then expands more strongly to the transverse direction than to the beam-direction. Then the angular-distribution of the intermediate mass fragments has a sideward peak; this result explains the experimental result.