Effect of channel coupling on the elastic scattering of lithium isotopes
Effect of channel coupling on the elastic scattering of lithium isotopes
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通道耦合对锂同位素弹性散射的影响
DOI：
10.1103/physrevc.97.044602
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
and N. Itagaki
中科院分区：
文献类型：
--
作者：
T. Furumoto;T. Suhara;and N. Itagaki
在此，我们研究了通道耦合 (CC) 对锂 (Li) 同位素 (–9) 弹性散射的影响，目标为 –60 MeV。采用基于微观团簇模型的随机多构型混合方法获得了Li同位素的波函数。随着价中子数量的增加， 和 原子核的质子半径变得更小。和原子核中的价中子表现出类似胶水的行为，从而吸引了和团簇。基于从这些微观波函数导出的跃迁密度，使用具有复杂基体相互作用的微观耦合通道方法计算弹性散射截面。很好地再现了锂同位素和原子核弹性散射的现有实验数据。演示了 MeV 和目标的 Li 同位素弹性截面。弹性散射的 CC 效应清楚地证明了价中子对 Li 同位素的胶状效应。最后，我们意识到价中子稳定了核心部分的结合，并且与核心激发相关的 CC 效应确实减少了。
Herein, we investigated the channel coupling (CC) effect on the elastic scatterings of lithium (Li) isotopes (–9) forandtargets at–60 MeV. The wave functions of the Li isotopes were obtained using the stochastic multi-configuration mixing method based on the microscopic-cluster model. The proton radii of the,, andnuclei became smaller as the number of valence neutrons increased. The valence neutrons in theandnuclei exhibited a glue-like behavior, thereby attracting theandclusters. Based on the transition densities derived from these microscopic wave functions, the elastic-scattering cross section was calculated using a microscopic coupled-channel method with a complex-matrix interaction. The existing experimental data for the elastic scatterings of the Li isotopes andnuclei were well reproduced. The Li isotope elastic cross sections were demonstrated for theandtargets atMeV. The glue-like effect of the valence neutrons on the Li isotope was clearly demonstrated by the CC effect on elastic scattering. Finally, we realize that the valence neutrons stabilized the bindings of the core parts and the CC effect related to core excitation was indeed reduced.