Astrophysical S factor of the C-12(alpha,gamma) O-16 reaction calculated with reduced R-matrix theory
文献类型：期刊论文
| 作者 | An, ZD; Chen, ZP; Ma, YG; Yu, JK; Sun, YY; Fan, GT; Li, YJ; Xu, HH; Huang, BS; Wang, K |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2015 |
| 卷号 | 92期号:4页码:— |
| 关键词 | CROSS-SECTION STANDARDS ENERGY-LEVELS STELLAR ENERGIES TRIPLE-ALPHA GAMMA)O-16 VICINITY CAPTURE C-12 NUCLEI RATES |
| ISSN号 | 0556-2813 |
| 通讯作者 | Chen, ZP (reprint author), Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 英文摘要 | Determination of the accurate astrophysical S factor of C-12(alpha,gamma) O-16 reaction has been regarded as the holy grail of nuclear astrophysics for decades. In current stellar models, a knowledge of that value to better than 10% is desirable. Due to the practical issues, tremendous experimental and theoretical efforts over nearly 50 years are not able to reach this goal, and the published values contradicted with each other strongly and their uncertainties are two times larger than the required precision. To this end we have developed a reduced R-matrix theory based on the classical R-matrix theory of Lane and Thomas, which treats primary transitions to the ground state and four bound states as the independent reaction channels in the channel spin representation. With the coordination of covariance statistics and error-propagation theory, a global fitting for almost all available experimental data of O-16 system has been multi-iteratively analyzed by our powerful code. A reliable, accurate, and self-consistent astrophysical S factor of C-12(alpha,gamma) O-16 was obtained with a recommended value S-tot(0.3 MeV) = 162.7 +/- 7.3 keV b (4.5%) which could meet the required precision. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000362438900003 |
| 公开日期 | 2016-03-08 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/24869]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | An, ZD,Chen, ZP,Ma, YG,et al. Astrophysical S factor of the C-12(alpha,gamma) O-16 reaction calculated with reduced R-matrix theory[J]. PHYSICAL REVIEW C,2015,92(4):—. |
| APA | An, ZD.,Chen, ZP.,Ma, YG.,Yu, JK.,Sun, YY.,...&Wang, K.(2015).Astrophysical S factor of the C-12(alpha,gamma) O-16 reaction calculated with reduced R-matrix theory.PHYSICAL REVIEW C,92(4),—. |
| MLA | An, ZD,et al."Astrophysical S factor of the C-12(alpha,gamma) O-16 reaction calculated with reduced R-matrix theory".PHYSICAL REVIEW C 92.4(2015):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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