论文标题
建模重叠的函数以进行一整核的去除：有效的三核力力的作用
Modelling overlap functions for one-nucleon removal: role of the effective three-nucleon force
论文作者
论文摘要
核子驱除反应计算所需的一个核子重叠函数是不均匀方程的溶液，其源项由初始和最终核态的波函数定义，以及与其余的核子之间的相互作用。源术语方法（STA）允许在使用最小模型空间中计算出的核多体函数时对正确的渐近减少重叠进行建模。通过正确选择删除的核子相互作用，最小模型空间STA可以再现从核子解析反应中提取的光谱因子的降低值，并预测光谱因子还原因素的异种不对称。众所周知，模型空间截断会导致高阶引起力的出现，而三核力的力是最重要的。在本文中，研究了这种力在源项计算中的作用。从双魔法核中删除一单核子的应用表明，三核力的力改善了对现象学重叠函数的描述，并减少了光谱因子中的同胞不对称性。
One-nucleon overlap functions, needed for nucleon-removal reaction calculations, are solutions of an inhomogeneous equation with the source term defined by the wave functions of the initial and final nuclear states and interaction between the removed nucleon with the rest. The source term approach (STA) allows the overlaps with correct asymptotic decrease to be modelled while using nuclear many-body functions calculated in minimal model spaces. By properly choosing the removed nucleon interaction the minimum-model-space STA can reproduce reduced values of spectroscopic factors extracted from nucleon-removal reactions and predicts isospin asymmetry in the spectroscopic factor reduction. It is well-known that model space truncation leads to the appearance of higher-order induced forces, with three-nucleon force being the most important. In this paper the role of such a force on the source term calculation is studied. Applications to one-nucleon removal from double-magic nuclei show that three-nucleon force improves the description of available phenomenological overlap functions and reduces isospin asymmetry in spectroscopic factors.
