论文标题
在中等能量敲除反应中,与Ichimura-Austern-Astern-vincent模型的半经典转移到连续模型的比较
Comparison of semiclassical transfer to continuum model with Ichimura-Austern-Vincent model in medium energy knockout reactions
论文作者
论文摘要
本文实施了Ichimura-Austern-vincent(IAV)的全量子机械(QM)模型,以在$^9 $上从沉重的放射性核中计算中等能量的分解。到目前为止,它已经实施并仅适用于光弹弹的低能反应。 IAV模型成功地预测了其他可观察到的绝对横截面。为了了解复杂的重离子反应,将对模型的含量深入了解,将结果与半经典转移的结果进行比较。因为TC基于分析公式,因此分解的动力学包含在涉及的IAV形式主义中将变得更加透明。从计算的角度来看,高能量的重离子反应($> $ 50 a.mev)是由于涉及的部分波数量大量的,通常约为100。它还允许对分手可观察物进行系统的快速评估。在两种方法的应用中,我们都使用最先进的光势和结构信息。在这两种方法的计算结果和可用的实验数据之间都发现了极好的一致性,这表明对一个核子破裂的大多数方面的定性和定量理解都很好地控制了。
The full quantum mechanical (QM) model of inclusive breakup of Ichimura-Austern-Vincent (IAV) is implemented in this paper to calculate breakup from heavy radioactive nuclei on a $^9$Be target at intermediate energies. So far it had been implemented and applied only to low energy reactions with light projectiles. The IAV model is successful in predicting absolute cross sections among other observables. In order to get insight on the content of the model in the case of the complicated heavy-ion reactions, results are compared with those of the semiclassical transfer to the continuum (TC) model. Because the TC is based on analytical formulae the dynamics of the breakup as it is contained in the rather involved IAV formalism will become more transparent. Heavy-ion reactions at high energies ($>$50A.MeV) are demanding from the computational point of view because of the high number of partial waves involved, typically around 100. The TC constitutes a useful alternative to the full QM calculations whenever predictions and/or estimates are necessary. It allows also for a systematic, fast evaluation of breakup observables. In the applications of both methods we use state-of-the art optical potentials and structure information. Excellent agreement is found between the calculated results of both methods and with available experimental data which shows that the qualitative and quantitative understanding of most aspects of one nucleon breakup is well under control.