A drop in the Li-6(p, gamma)Be-7 reaction at low energies
文献类型：期刊论文
| 作者 | Xu, SW1 ; Hu, J1; Ma, XW1; Wiescher, M1; deBoer, RJ1; Kajino, T1; Kusakabe, M1; Zhang, LY1; Hou, SQ1; Yu, XQ1
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2013 |
| 卷号 | 725页码:287-291 |
| 关键词 | Radiative capture Direct capture S factors Big-bang nucleosynthesis |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2013.07.044 |
| 英文摘要 | The low-energy astrophysical S factors of the Li-6(p, gamma)Be-7 reaction have been investigated on a 320 kV platform at the Institute of Modern Physics in Lanzhou. The experimental S factor of this reaction shows an interesting sizable drop contrary to any existing theoretical expectations at energies below 200 keV. Such drop has not been fully understood yet and may reflect a novel reaction mechanism. The appearance of an interesting new positive-parity 1/2(+) or 3/2(+) resonance at E-c.m. approximate to 195 keV is discussed. This study shows the danger of extrapolating experimental data over too large an energy range and demonstrates the need for careful direct experimental studies of reaction cross sections at or near stellar energies. In addition, our new results are discussed in the framework of a SUSY assisted Big-Bang Nucleosynthesis (BBN) model. (C) 2013 Elsevier B.V. All rights reserved. |
| WOS关键词 | NUCLEAR ASTROPHYSICS ; RADIATIVE-CAPTURE ; LIGHT-NUCLEI ; REACTION LI-6(P,GAMMA)BE-7 ; H-2(D,GAMMA)HE-4 REACTION ; LI-6(P,HE-3)HE-4 REACTION ; CROSS-SECTIONS ; UNIVERSE |
| 资助项目 | MEXT[2010544] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语; |
| WOS记录号 | WOS:000324223100013 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.impcas.ac.cn/handle/113462/23392]  |
| 专题 | 近代物理研究所_实验物理中心 近代物理研究所_兰州重离子研究装置 |
| 通讯作者 | He, JJ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany 4.Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA 5.Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan 6.Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan 7.Univ Tokyo, Grad Sch Sci, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan 8.China Inst Atom Energy, Beijing 102413, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, SW,Hu, J,Ma, XW,et al. A drop in the Li-6(p, gamma)Be-7 reaction at low energies[J]. PHYSICS LETTERS B,2013,725:287-291. |
| APA | Xu, SW.,Hu, J.,Ma, XW.,Wiescher, M.,deBoer, RJ.,...&Rolfs, CE.(2013).A drop in the Li-6(p, gamma)Be-7 reaction at low energies.PHYSICS LETTERS B,725,287-291. |
| MLA | Xu, SW,et al."A drop in the Li-6(p, gamma)Be-7 reaction at low energies".PHYSICS LETTERS B 725(2013):287-291. |
入库方式： OAI收割
来源：近代物理研究所
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