Comparative study on charge radii and their kinks at magic numbers

被引：21

作者：

Naito, Tomoya ^{[1
,2
]}

Oishi, Tomohiro ^{[3
,5
]}

Sagawa, Hiroyuki ^{[4
,5
]}

Wang, Zhiheng ^{[6
,7
]}

机构：

[1] RIKEN Interdisciplinary Theoret & Math Sci Program, Wako 3510198, Japan

[2] Univ Tokyo, Grad Sch Sci, Dept Phys, Tokyo 1130033, Japan

[3] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan

[4] Univ Aizu, Ctr Math & Phys, Aizu Wakamatsu 9658560, Japan

[5] RIKEN Nishina Ctr, Wako 3510198, Japan

[6] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China

[7] Lanzhou Univ, Frontiers Sci Ctr Rare Isotopes, Lanzhou 730000, Peoples R China

来源：

PHYSICAL REVIEW C | 2023年 / 107卷 / 05期

关键词：

MEAN-FIELD DESCRIPTION; EFFECTIVE FORCES; NUCLEI; PARAMETRIZATION; DENSITIES; ISOSPIN; MATTER;

D O I：

10.1103/PhysRevC.107.054307

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Isotope dependences of charge radii, i.e., isotope shifts, calculated by the Skyrme Hartree-Fock, the relativistic mean-field, and the relativistic Hartree-Fock calculations are compared against the experimental data of magic and semimagic nuclei. It is found that the tensor interaction plays a role in reproducing the "kink" behavior, irregularity of isotope shifts at the neutron magic number, in the relativistic Hartree-Fock approach. With several Skyrme models, it is found that the kink behavior can be reproduced with the spin-orbit interaction having nonzero isovector channel. The single-particle orbitals near the Fermi energy are crucial to determine the kink size. The effects of the symmetry energy and the pairing interaction are also discussed in relation to the kink behavior.

引用

页数：20

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