论文标题
去除反应的横截面，填充弱结合的残留核
Cross sections of removal reactions populating weakly-bound residual nuclei
论文作者
论文摘要
在许多情况下，来自中子 - 核子不对称弹丸核的单核去除反应在残留的核中填充了最终结合的最终状态。熟悉的示例包括来自中子富含中子的$^{11} $ and $^{12} $的中子去除反应，后者填充了众所周知的$ 1/2^+$ halo地面 - $ 1/2^ - $ 1/2^ - $^{11} $ of $^{11} $ - 两种状态均低于第一个中子thelson-depecay thelshold。在不对称$ p $和$ SD $ -SHELL NUCLEI的反应中出现了许多其他示例。这种弱残基结合对计算的单核去除反应截面的重要性是通过模型计算的方式来量化的，该模型计算忽略或包括残留核的解离程度。计算出的两个代表性$ p $ shell弹丸的计算出反应的横截面表明，对这些残留分裂效应的明确处理是不必要的，并且如果使用对残留结构和密度的一致描述，则分手和无分解计算之间的差异很小。
In many instances, single nucleon removal reactions from neutron-proton asymmetric projectile nuclei populate final states in the residual nuclei that are very weakly bound. Familiar examples include neutron removal reactions from neutron-rich $^{11}$Be and $^{12}$Be, the latter populating the well-known $1/2^+$ halo ground-state and $1/2^-$ excited-state of $^{11}$Be - both states less than 1 MeV from the first neutron-decay threshold. Numerous additional examples arise in reactions of asymmetric $p$- and $sd$-shell nuclei. The importance of this weak residue binding upon calculated single-nucleon removal reaction cross sections is quantified by means of model calculations that neglect or include the dissociation degree of freedom of the residual nuclei. The calculated removal-reaction cross sections for two representative $p$-shell projectiles indicate that an explicit treatment of these residue break-up effects is unnecessary and that the differences between the break-up and no break-up calculations are small provided a consistent description of the residue structure and density is used.
