Direct measurement of astrophysical factor S(E) and screening potential for Be-9(p, alpha)Li-6 reaction at low energy
文献类型：期刊论文
| 作者 | Fang Kaihong1,2; Zhang Qian1; Chen Bingjun1; Zhang Zhengwei1; Wang Qiang1; Wang Tieshan1; Kasagi, Jirohta2; Hu Jun3 ; Xu Shiwei3
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2018-10-10 |
| 卷号 | 785页码:262-267 |
| 关键词 | p-Be-9 reaction Screening potential Astrophysical factor |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.08.066 |
| 英文摘要 | As Beryllium is an important element in primary nucleosynthesis, its nuclear reaction cross-sections induced by charged projectiles need to be measured precisely. The astrophysical S(E-i) factors were measured in the ultra-low energy range from E-lab = 18 to 100 keV in 2-keV increments (42 points). Both the astrophysical S(E) curve (S-bare(0) = 16.2 +/- 1.8 MeVb) and the screening energy (U-s = 545 +/- 98 eV) were deduced. In regard to astrophysical applications of the Sbare(E) curve, the present results are consistent with Zahnow's direct measurement. For the long-standing problem of 'abnormal' screening effect, our screening energy result also agrees with that obtained using the Trojan-horse method (U-s = 676 +/- 86 eV) but smaller than Zahnow's value (900 +/- 50 eV), although all results are much larger than that obtained in the adiabatic limit (similar to 264 eV). (C) 2018 The Authors. Published by Elsevier B.V. |
| WOS关键词 | CROSS-SECTIONS ; NUCLEAR ASTROPHYSICS ; ELEMENTS ; D(D,P)T ; D)BE-8 |
| 资助项目 | National Natural Science Foundation of China[11075067] ; National Natural Science Foundation of China[11305080] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000447424000037 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/64414]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Fang Kaihong |
| 作者单位 | 1.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Tohoku Univ, Res Ctr Electron Photon Sci, Sendai, Miyagi 9820826, Japan 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang Kaihong,Zhang Qian,Chen Bingjun,et al. Direct measurement of astrophysical factor S(E) and screening potential for Be-9(p, alpha)Li-6 reaction at low energy[J]. PHYSICS LETTERS B,2018,785:262-267. |
| APA | Fang Kaihong.,Zhang Qian.,Chen Bingjun.,Zhang Zhengwei.,Wang Qiang.,...&Xu Shiwei.(2018).Direct measurement of astrophysical factor S(E) and screening potential for Be-9(p, alpha)Li-6 reaction at low energy.PHYSICS LETTERS B,785,262-267. |
| MLA | Fang Kaihong,et al."Direct measurement of astrophysical factor S(E) and screening potential for Be-9(p, alpha)Li-6 reaction at low energy".PHYSICS LETTERS B 785(2018):262-267. |
入库方式： OAI收割
来源：近代物理研究所
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