发表机构
State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University; School of Nuclear Science and Technology, University of Chinese Academy of Sciences; Department of Physics, School of Science, Tianjin University; School of Physics and Mechatronics Engineering, Guizhou Minzu University; School of Physics, East China Normal University; Department of Physics and Origin of Matter and Evolution of Galaxy Institute, Soongsil University; School of Physics, Peng Huanwu Collaborative Center for Research and Education, and International Research Center for Big-Bang Cosmology and Element Genesis, Beihang University; Department of Physics, Beijing Normal University; Institute of Modern Physics, Chinese Academy of Sciences; School of Physics, University of Chinese Academy of Sciences; College of Physics, Jilin University(北京大学物理学院核物理与技术国家重点实验室; 中国科学院大学核科学与技术学院; 天津大学理学院物理系; 贵州民族大学物理与机电工程学院; 华东师范大学物理学院; 崇实大学物质起源与星系进化研究所物理系; 北京航空航天大学物理学院彭桓武研究中心宇宙大爆炸与元素生成国际研究中心; 北京师范大学物理系; 中国科学院近代物理研究所; 中国科学院大学物理学院; 吉林大学物理学院)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
该研究将 DRHBc 理论的质量表扩展到 $8 \leq Z \leq 120$,预测 9495 个束缚核,rms 偏差 1.444 MeV,提供了核质量的最佳微观描述之一。
AI 中文摘要
基于 PC-PK1 密度泛函的连续谱中形变相对论 Hartree-Bogoliubov 理论(DRHBc)已建立了覆盖 $8 \leq Z \leq 120$ 原子核的质量表,这是从先前针对偶偶核 [Zhang 等(DRHBc 质量表合作组),At. Data Nucl. Data Tables 144, 101488 (2022)] 和偶-Z 核 [Guo 等(DRHBc 质量表合作组),At. Data Nucl. Data Tables 158, 101661 (2024)] 的工作扩展而来。计算得到的结合能、双核子和单核子分离能、中子、质子、物质和电荷分布的均方根(rms)半径、四极形变、中子和质子费米面,以及奇-N(Z)核的阻塞中子(质子)轨道均被列表给出,并与现有实验数据进行了比较。总共预测了 9495 个束缚核,与 2380 个质量数据的 rms 偏差为 1.444 MeV。与现有实验配对能隙、$\alpha$ 衰变能和电荷半径也取得了良好的一致性。计算得到的核质量和核子分离能的精度以及对滴线位置的预测,与其他相对论和非相对论密度泛函计算的结果进行了比较。结果表明,采用 PC-PK1 的 DRHBc 理论为核质量提供了最佳的微观描述之一。文中还讨论了核子分离能、配对能隙、配对能、双核子能隙、$\alpha$ 衰变能、rms 半径、四极形变、势能曲线、中子密度分布和中子平均场势的系统学。
英文摘要
The mass table in the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) with the PC-PK1 density functional has been established for nuclei with $8 \leq Z \leq 120$, extended from the previous works for even-even nuclei [Zhang et al. (DRHBc mass table collaboration), At. Data Nucl. Data Tables 144, 101488 (2022)] and for even-$Z$ nuclei [Guo et al. (DRHBc mass table collaboration), At. Data Nucl. Data Tables 158, 101661 (2024)]. The calculated binding energies, two- and one-nucleon separation energies, root-mean-square (rms) radii of neutron, proton, matter, and charge distributions, quadrupole deformations, neutron and proton Fermi surfaces, and the blocked neutron (proton) orbitals of odd-$N$ ($Z$) nuclei are tabulated and compared with the available experimental data. A total of 9495 nuclei are predicted to be bound, with an rms deviation of 1.444 MeV from the 2380 mass data. Good agreement with the available experimental pairing gaps, $α$ decay energies, and charge radii is also achieved. The accuracies of the calculated nuclear masses and nucleon separation energies as well as the prediction for drip lines are compared with those obtained by other relativistic and nonrelativistic density functional calculations. It turns out that the DRHBc theory with PC-PK1 provides one of the best microscopic descriptions for nuclear masses. The systematics of nucleon separation energies, pairing gaps, pairing energies, two-nucleon gaps, $α$ decay energies, rms radii, quadrupole deformations, potential energy curves, neutron density distributions, and neutron mean-field potentials are discussed.
Comments733 pages, 20 figures, 2 tables, data file in the TXT form is available for download under "Ancillary files"