Astrophysical S(E) for the Be-9(p, d)Be-8 and Be-9(p, alpha)Li-6 Reactions by Direct Measurement
文献类型：期刊论文
| 作者 | Zhang, Qian2; Huang, Zhenglin2; Hu, Jun1,3 ; Chen, Bingjun2; Hou, Suqing3; Wang, Tieshan2; Fang, Kaihong2
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2020-04-01 |
| 卷号 | 893期号:2页码:9 |
| ISSN号 | 0004-637X |
| 关键词 | Nuclear reaction cross sections Reaction rates Nucleosynthesis |
| DOI | 10.3847/1538-4357/ab8222 |
| 通讯作者 | Hu, Jun(hujunbaggio@impcas.ac.cn) ; Fang, Kaihong(fangkh@lzu.edu.cn) |
| 英文摘要 | The p-Be-9 reactions play a key role in accurate prediction of the primordial abundance of beryllium, and its abundance can be used to exquisitely probe the nucleosynthesis and mixing mechanism of stars. In the present work, astrophysical S(E) factors of the Be-9(p, d)Be-8 and Be-9(p, alpha)Li-6 reactions have been obtained from the thick-target yield Yield(E-i) for proton energies from 18 to 100 keV. A full R-matrix analysis was performed to fit both the Be-9(p, alpha)Li-6 and Be-9(p, d)Be-8 reactions simultaneously. The resulting astrophysical S(E) factors agree well with direct measurements, leading to S(0) = 17.3 2.1 and 13.9 1.8 MeVb for the Be-9(p, alpha)Li-6 and Be-9(p, d)Be-8 reactions, respectively. However, the obtained screening potential (U-s = 512 77 eV) is lower than results of previous work (900 50 and 806 eV), and all of them are larger than the adiabatic limit of 264 eV. The reaction rates were also calculated in the temperature range (0.01-1) 10(9) K, which improves on the precision of the standard database NACRE and NACRE II. |
| WOS关键词 | CROSS-SECTIONS ; BERYLLIUM ; LITHIUM ; ELEMENTS ; COMPILATION ; D(D,P)T ; NUCLEI |
| 资助项目 | Major State Basic Research Development Program of China[2016YFA0400503] ; Fundamental Research Funds for the Central Universities[lzujbky-2019-53] ; National Natural Science Foundation of China[11705244] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2019406] ; Science Challenge Project |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000529873500001 |
| 资助机构 | Major State Basic Research Development Program of China ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Science Challenge Project |
| 源URL | [http://119.78.100.186/handle/113462/140528]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Hu, Jun; Fang, Kaihong |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 2.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Qian,Huang, Zhenglin,Hu, Jun,et al. Astrophysical S(E) for the Be-9(p, d)Be-8 and Be-9(p, alpha)Li-6 Reactions by Direct Measurement[J]. ASTROPHYSICAL JOURNAL,2020,893(2):9. |
| APA | Zhang, Qian.,Huang, Zhenglin.,Hu, Jun.,Chen, Bingjun.,Hou, Suqing.,...&Fang, Kaihong.(2020).Astrophysical S(E) for the Be-9(p, d)Be-8 and Be-9(p, alpha)Li-6 Reactions by Direct Measurement.ASTROPHYSICAL JOURNAL,893(2),9. |
| MLA | Zhang, Qian,et al."Astrophysical S(E) for the Be-9(p, d)Be-8 and Be-9(p, alpha)Li-6 Reactions by Direct Measurement".ASTROPHYSICAL JOURNAL 893.2(2020):9. |
入库方式： OAI收割
来源：近代物理研究所
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