Breakup mechanisms in heavy-ion collisions at low energies
Breakup mechanisms in heavy-ion collisions at low energies
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DOI：
10.1103/physrevc.81.054605
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发表时间：
2010-03
影响因子：
3.1
通讯作者：
L. Shvedov;M. Colonna;M. Toro
中科院分区：
文献类型：
--
作者：
L. Shvedov;M. Colonna;M. Toro
我们研究了低能重离子碰撞中的反应机制。特别是，我们专注于融合和分裂过程（深非弹性和碎片）在semiperipheral碰撞，在各种条件下的形状和角动量的激发系统的形成之间的竞争进行观察。采用Langevin处理的系统配置的动态演化，描述的形状观测量，如四极矩和八极矩，我们得到的融合和裂变的概率，从相应的融合和分裂截面，最终可以评估。的形状，角动量和激发能的结果的依赖关系进行了讨论。
We investigate reaction mechanisms occurring in heavy-ion collisions at low energy (approx20 MeV/nucleon). In particular, we focus on the competition between fusion and breakup processes (deep inelastic and fragmentation) in semiperipheral collisions, where the formation of excited systems under various conditions of shape and angular momentum is observed. Adopting a Langevin treatment for the dynamical evolution of the system configuration, described in terms of shape observables such as quadrupole and octupole moments, we derive fusion and fission probabilities, from which the corresponding fusion and breakup cross sections can finally be evaluated. The dependence of the results on shape, angular momentum, and excitation energy is discussed.