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Benchmarking nuclear energy density functionals with new mass data

delete2025-09-29
delete0
PRE
AI
X
Xiaoying Qu
K
Kangmin Chen
潘琮 封面图
潘琮 (Cong Pan)
Y
Yangyang Yu
K
Kaiyuan Zhang *
DOI：10.1007/s41365-025-01821-1delete
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摘要

摘要

En 中文
原子质量在核物理和天体物理学中都扮演着至关重要的角色，推动着持续的努力以实现精确的实验测定和可靠的理论预测。在本研究中，我们收集了自最新原子质量评价发布之后，来自2021年至2024年间发表的40篇参考文献中296个核素的最新测量质量。这些数据用于评估几种相对论性和非相对论性密度泛函的性能，包括PC-PK1、TMA、SLy4、SV-min、UNEDF1以及最近提出的PC-L3R。PC-PK1和PC-L3R的结果是使用当前最先进的连续形变相对论哈特里-玻戈留波夫理论（DRHBc）获得的，而其他泛函的数据则引用自现有文献。结果表明，PC-PK1和PC-L3R的DRHBc计算达到了优于1.5 MeV的精度，优于其他泛函，后者的均方根偏差均超过2 MeV。对理论描述中的奇偶效应和同位旋依赖性进行了考察。PC-PK1和PC-L3R的描述在定性上相似，均表现出沿同位素链的强同位旋依赖性。最后，对PC-PK1和PC-L3R的结果进行了定量比较，并基于约束DRHBc计算得到的势能曲线分析了最大的差异。
Keyword:
Nuclear mass
Density functional theory
Deformed relativistic Hartree–Bogoliubov theory in continuum
PC-PK1
PC-L3R

期刊

Nuclear Science and Techniques 封面图
Nuclear Science and Techniques
IF:
3.8
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2.2K
被引数:
3.4K

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Department of Physics
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被引数: 37
N
National Key Laboratory of Neutron Science and Technology
学者数:
10
论文数: 3
被引数: 0
S
school of physics and mechatronic engineering
学者数:
7
论文数: 5
被引数: 0
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