Sensitivity Study of r-process Abundances to Nuclear Masses

被引：20
|
作者：
Jiang, X. F. [1 ]
Wu, X. H. [1 ]
Zhao, P. W. [1 ]
机构：
[1] Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
来源：
ASTROPHYSICAL JOURNAL | 2021年 / 915卷 / 01期
基金：
国家重点研发计划; 中国国家自然科学基金;
关键词：
NEUTRINO-DRIVEN WINDS; GROUND-STATE MASSES; NUCLEOSYNTHESIS; ELEMENTS; IMPACT; DEFORMATIONS; STABILITY; FORMULA;
D O I：
10.3847/1538-4357/ac042f
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The impact of nuclear mass uncertainties on the r-process abundances has been systematically studied with the classical r-process model by varying the mass of every individual nucleus in the range of +/- 0.1 to +/- 3.0 MeV based on six different mass models. A new quantitative relation between the uncertainties of r-process abundances and those of the nuclear masses is extracted, i.e., a mass uncertainty of +/- 0.5 MeV would lead to an abundance uncertainty of a factor around 2.5. It is found that this conclusion holds true for various mass models.
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页数：5
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