论文标题
从头算在同位素锂同位素中的单中子光谱重叠
Ab initio single-neutron spectroscopic overlaps in lithium isotopes
论文作者
论文摘要
我们计算\ textit {ab initio}对称适应的无核壳模型的锂同位素的单中间光谱重叠。我们报告了许多反应横截面计算中重要的成分。尽管传统上从实验横截面中提取了光谱因子，但它们对反应，能量和基础模型的敏感性表明需要从第一原则结构注意事项中确定SF。作为说明性示例，我们提供了$^6 $ li+n，$^7 $ li+n和$^8 $ li+n，并且我们证明结果与其他\ textit {ab intibil}方法（包括Quantum Monte carlo方法）的其他\ textit {ab intibil}方法达成了很好的协议。我们将ANC和SFS与可用的实验推导值进行比较，以期将这项研究扩展到较重的核并提取集群间有效相互作用，以将其输入到现有和将来的实验数据分析中。
We calculate single-neutron spectroscopic overlaps for lithium isotopes in the framework of the \textit{ab initio} symmetry-adapted no-core shell model. We report the associated neutron-nucleus asymptotic normalization coefficients (ANCs) and spectroscopic factors (SFs) that are important ingredients in many reaction cross section calculations. While spectroscopic factors have been traditionally extracted from experimental cross sections, their sensitivity on the type of reactions, energy, and the underlying models point to the need for determining SF from first-principle structure considerations. As illustrative examples, we present $^6$Li+n, $^7$Li+n, and $^8$Li+n, and we show that the results are in a good agreement with those of other \textit{ab initio} methods, where available, including the quantum Monte Carlo approach. We compare ANCs and SFs to available experimentally deduced values, with a view toward expanding this study to heavier nuclei and to extracting inter-cluster effective interactions for input into analyses of existing and future experimental data.
