Angular momentum dependence of quasifission dynamics in the reaction Ca-48+Pu-244
Angular momentum dependence of quasifission dynamics in the reaction Ca-48+Pu-244
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Ca-48 Pu-244 反应中准裂变动力学的角动量依赖性
DOI：
10.1007/s11433-017-9063-3
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Guo Lu
中科院分区：
文献类型：
--
作者：
Yu Chong;Guo Lu
在时间相关Hartree-Fock （TDHF）理论框架下研究了48ca +244Pu反应的准裂变动力学。计算是在没有任何对称限制的三维笛卡尔坐标系中进行的。我们的TDHF实现中包含了完整的Skyrme能量功能。准分裂动力学对碰撞系统的角动量非常敏感。准分裂的接触时间随角动量的变化而减小，然后形成一个振荡较小的平台。准裂变过程伴随着一个重要的多核子转移。量子壳层效应对准分裂碎片的质量和电荷起着至关重要的作用。计算了碎片的质量角分布，可以直接与未来的实验进行比较。
The quasifission dynamics in the reaction48Ca+244Pu is investigated in the framework of time-dependent Hartree-Fock (TDHF) theory. The calculations are performed in three-dimensional Cartesian coordinate without any symmetry restrictions. The full Skyrme energy functional is incorporated in our TDHF implementation. The quasifission dynamics is quite sensitive to the angular momentum of colliding system. The contact time of quasifission decreases as a function of angular momentum and then forms a plateau with small oscillations. The quasifission process is accompanied by an important multi-nucleon transfer. The quantum shell effect plays a crucial role in the mass and charge of quasifission fragments. The mass-angle distribution of the fragments is calculated, which can be compared directly with future experiments.