论文标题

由核素$^6 $ he和$^{6,7} $ li在两体群集模型中引起的反应中的包含分解横截面

Inclusive Breakup Cross Sections in Reactions Induced by the Nuclides $^6$He and $^{6,7}$Li in the Two-Body Cluster Model

论文作者

Souza, L. A., Chimanski, E. V., Carlson, B. V.

论文摘要

进行了包含$α$粒子产生的计算,以解释由两种中子halo $^6 $ He引起的反应实验数据,以及在不同目标核上的同位素$^{6,7} $ li。我们已经实施了零范围的后形式DWBA,以计算弹性和非弹性分解截面。提出了集成的横截面,角分布和光谱。弹丸被近似为两体簇,即$^6 $ He作为$α$+dineutron和$^{6} $ li($^{7} $ li)被解释为$α$+deuteron(triton)。圣保罗光电位用于入射通道的扭曲波函数的计算,而标准的现象学相互作用用于片段目标相互作用。 $^6 $ li和$^7 $ li的计算提供了对数据的良好描述,而涉及$^6 $的反应被认为是一个复杂的情况,数据解释仍然被认为是主要障碍。目前的分析确定了所有研究的病例中包容性分手排放的总体贡献。

Calculations of inclusive $α$ particle production are performed to interpret reaction experimental data induced by the two-neutron halo $^6$He and the isotopes $^{6,7}$Li on different target nuclei. We have implemented the zero-range post-form DWBA to compute the elastic and nonelastic breakup cross sections. Integrated cross sections, angular distributions and spectra are presented. Projectiles are approximated as two-body clusters, namely $^6$He as $α$+dineutron and $^{6}$Li ($^{7}$Li) interpreted as $α$+deuteron(triton). The São Paulo optical potential is employed in the calculation of the distorted wave functions for the incident channels, while standard phenomenological interactions are used for the fragment-target interactions. Calculations for $^6$Li and $^7$Li furnish a good description of the data, while the reaction involving $^6$He is found to be a complicated case, where data interpretation is still considered a major obstacle. The present analysis identifies an overall large contribution from inclusive breakup emissions for all the cases studied.

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