Previously measured elastic scattering and two-neutron transfer angular distributions for 8He scattered from a 4He target [Phys Lett. B 75, 58-62, 2017] are analysed using the coupled reaction channels (CRC) formalism and the effect of 1, 2 and 4-neutron transfers on both the elastic scattering and 6He + 6He channels is examined. The CRC calculations find that 1n and 2n transfers are the dominant processes in the production of 6He while the influence on the elastic scattering of 4n transfer between the 4He cores is small. Calculated excitation functions based on fits to both data sets suggest resonant-like behaviour centred at 12Be excitation energies of about 13 MeV and 14-16 MeV, both associated with the L=2 and 4 partial waves and consistent with molecular structures in the intermediate 12Be system.

中文翻译：

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8He+4He 散射和谐振行为的耦合通道分析


之前测量了从 4He 目标散射的 8He 的弹性散射和双中子转移角分布 [Phys Lett. B 75, 58-62, 2017] 使用耦合反应通道 (CRC) 形式进行分析，并检查 1、2 和 4 中子转移对弹性散射和 6He + 6He 通道的影响。 CRC计算发现1n和2n转移是6He产生的主要过程，而4He核心之间的4n转移对弹性散射的影响很小。基于对两个数据集的拟合计算出的激发函数表明，类共振行为集中在约 13 MeV 和 14-16 MeV 的 12Be 激发能量处，两者都与 L=2 和 4 分波相关，并且与中间 12Be 中的分子结构一致系统。