论文标题
Daejeon16与重型核系统的接触期校正相互作用
Daejeon16 interaction with contact-term corrections for heavy nuclear systems
论文作者
论文摘要
Daejeon16两核子相互作用是基于平均场近似的多体方法。通过比较来自Hartree-fock（HF）近似和无核壳模型的16O的结果，并检查扰动校正的大小与光和重核中的HF能量的大小，可以验证Daejeon16的扰动特征。为了在核图表上大致描述能量和半径，引入了两种三个以上三核接触相互作用的形式的现象学校正。使用拟合的参数，我们就能量和大小以及巨型单极共振的质心能量以及在随机相近似（RPA）中计算的偶极极化性方面对中质量核的描述很好地描述。我们的结果为使用Daejeon16的使用提供了进一步的理由，并通过现象学校正作为在各种应用中扰动特征的有效相互作用。
The Daejeon16 two-nucleon interaction is employed in many-body approaches based on the mean-field approximation. The perturbative character of Daejeon16 is verified by comparing results for 16O from the Hartree-Fock (HF) approximation and from the no-core shell model and by examining the magnitude of perturbative corrections to the HF energy in light and heavy nuclei. In order to approximately describe energies and radii across the nuclear chart, a phenomenological correction in the form of a two-plus-three-nucleon contact interaction is introduced. With fitted parameters we achieve a very good description of medium-mass nuclei in terms of energy and size and also in terms of the centroid energy of the giant monopole resonance and the dipole polarizability calculated within the random-phase approximation (RPA). Our results provide further justification for the use of Daejeon16 augmented with phenomenological corrections as an effective interaction of perturbative character in a variety of applications.
