论文标题
张张力对壳结构进化的影响$ n = 82 $ isotones和$ z = 50 $同位素在相对论哈特里 - 福克理论中
Tensor-force effects on shell-structure evolution in $N = 82$ isotones and $Z = 50$ isotopes in the relativistic Hartree-Fock theory
论文作者
论文摘要
中子之间的能量差的演变表示$ 1i_ {13/2} $和$ 1H_ {9/2} $在$ n = 82 $中的$ n = 82 $ isotones，而Proton状态$ 1H_ {11/2} $和$ 1G_ {7/2} $在$ z = 50 $ iSopock中使用的框架中的fractivewert在nefive nefive nefive nefive nefive nefive neferative neferative有效的互动PKA1和PKO $ i $（$ i = 1 $，$ 2 $，$ 3 $）。通过识别张量力的贡献，该张力力是通过Fock项自然诱导的，我们发现张量力在壳结构的演化中起着至关重要的作用。还探索了张力力的强度。发现中等地提高了脉冲核耦合的耦合强度，即$f_π$，将显着改善对壳结构演化的描述。特别是，与用一个因素扩大$f_π$相比，减少$f_π$的密度依赖性更可取。这与“张量重新归一化持久性”的思想一致，并为在相对论框架中核能密度的发展提供了宝贵的指导。
The evolution of the energy difference between the neutron states $1i_{13/2}$ and $1h_{9/2}$ in the $N=82$ isotones and that between the proton states $1h_{11/2}$ and $1g_{7/2}$ in the $Z = 50$ isotopes are investigated within the framework of the relativistic Hartree-Fock theory, using the density-dependent effective interactions PKA1 and PKO$i$ ($i = 1 $, $ 2 $, $ 3 $). By identifying the contributions of the tensor force, which is naturally induced via the Fock terms, we find that the tensor force plays crucial roles in the evolution of the shell structure. The strength of the tensor force is also explored. It is found that moderately increasing the coupling strength of pion-nucleon coupling, i.e., $f_π$, will significantly improve the description of the shell-structure evolution. In particular, reducing the density dependence of $f_π$ is shown to be more preferable, in comparison to enlarging $f_π$ with a factor. This is in consistence with the idea of "tensor renormalization persistency" and provides valuable guidance for the development of nuclear energy density functional in the relativistic framework.
