连续介质形变相对论Hartree-Bogoliubov理论中的核质量表:I.偶偶核
核理论
2022-01-11 v1 太阳与恒星天体物理
核实验
摘要
使用带有密度泛函PC-PK1的连续介质形变相对论Hartree-Bogoliubov理论(DRHBc),研究了质子滴线到中子滴线之间的偶偶核的基态性质。在同时包含形变和连续介质效应的情况下,预测有2583个偶偶核是束缚的。计算得到的结合能、双核子分离能、中子、质子、物质与电荷分布的根均方(rms)半径、四极形变以及中子和质子费米面被制成表格并与可用的实验数据比较。与637个质量数据的rms偏差为1.518 MeV,为核质量提供了最佳的微观描述之一。由DRHBc计算得到的滴线与包括使用PC-PK1的球相对论连续介质Hartree-Bogoliubov(RCHB)和三轴相对论Hartree-Bogoliubov(TRHB)计算在内的其他计算进行了比较。讨论了形变和连续介质效应对核素图边界的影响。预测了超出双中子滴线由束缚核组成的可能半岛。还讨论了DRHBc计算中双核子分离能、双核子能隙、rms半径、四极形变、势能曲线、中子密度、中子平均场势和配对能的系统学。此外,提取的衰变能与可用数据吻合良好。
引用
@article{arxiv.2201.03216,
title = {Nuclear mass table in deformed relativistic Hartree-Bogoliubov theory in continuum: I. even-even nuclei},
author = {DRHBc Mass Table Collaboration and Kaiyuan Zhang and Myung-Ki Cheoun and Yong-Beom Choi and Pooi Seong Chong and Jianmin Dong and Zihao Dong and Xiaokai Du and Lisheng Geng and Eunja Ha and Xiao-Tao He and Chan Heo and Meng Chit Ho and Eun Jin In and Seonghyun Kim and Youngman Kim and Chang-Hwan Lee and Jenny Lee and Hexuan Li and Zhipan Li and Tianpeng Luo and Jie Meng and Myeong-Hwan Mun and Zhongming Niu and Cong Pan and Panagiota Papakonstantinou and Xinle Shang and Caiwan Shen and Guofang Shen and Wei Sun and Xiang-Xiang Sun and Chi Kin Tam and Thaivayongnou and Chen Wang and Xingzhi Wang and Sau Hei Wong and Jiawei Wu and Xinhui Wu and Xuewei Xia and Yijun Yan and Ryan Wai-Yen Yeung and To Chung Yiu and Shuangquan Zhang and Wei Zhang and Xiaoyan Zhang and Qiang Zhao and Shan-Gui Zhou},
journal= {arXiv preprint arXiv:2201.03216},
year = {2022}
}
备注
217 pages, 15 figures, 2 tables, accepted for publication in Atomic Data and Nuclear Data Tables, data file in the TXT form is available for download under "Ancillary files"