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| beta-decay study of the T-z =-2 proton-rich nucleus Mg-20 | |
| Sun, LJ; Xu, XX; Fang, DQ; Lin, CJ; Wang, JS; Li, ZH; Wang, YT; Li, J; Yang, L; Ma, NR; Wang, K; Zang, HL; Wang, HW; Li, C; Shi, CZ; Nie, MW; Li, XF; Li, H; Ma, JB; Ma, P; Jin, SL; Huang, MR; Bai, Z; Wang, JG; Yang, F; Jia, HM; Zhang, HQ; Liu, ZH; Bao, PF; Wang, DX; Yang, YY; Zhou, YJ; Ma, WH; Chen, J; Ma, YG; Zhang, YH; Zhou, XH; Xu, HS; Xiao, GQ; Zhan, WL | |
| 2017 | |
| Source Publication | PHYSICAL REVIEW C
 |
| ISSN | 2469-9985 |
| Volume | 95Issue:1Pages:- |
| Subtype | 期刊论文 |
| Abstract | The beta decay of the drip-line nucleus Mg-20 gives important information on key astrophysical resonances in 20Na, which are relevant to the onset of the rapid proton capture process. A detailed beta-decay spectroscopic study of 20Mg was performed by a continuous-implantation method. A detection system was specially developed for charged-particle decay studies, giving improved spectroscopic information including the delayed proton energies, the half-life of 20Mg, the excitation energies, the branching ratios, and the log ft values for the states in Na-20 populated in the beta decay of Mg-20. A new proton branch was observed and the corresponding excited state in 20Na was proposed. The large isospin asymmetry for the mirror decays of Mg-20 and O-20 was also well reproduced. To resolve the long-standing problem about the astrophysically interesting 2645 keVresonance in Na-20 convincingly, a higher-statistics measurement may still be needed. |
| DOI | 10.1103/PhysRevC.95.014314 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000391860300003 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/27266 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Recommended Citation GB/T 7714 | Sun, LJ,Xu, XX,Fang, DQ,et al. beta-decay study of the T-z =-2 proton-rich nucleus Mg-20[J]. PHYSICAL REVIEW C,2017,95(1):-. |
| APA | Sun, LJ.,Xu, XX.,Fang, DQ.,Lin, CJ.,Wang, JS.,...&Zhan, WL.(2017).beta-decay study of the T-z =-2 proton-rich nucleus Mg-20.PHYSICAL REVIEW C,95(1),-. |
| MLA | Sun, LJ,et al."beta-decay study of the T-z =-2 proton-rich nucleus Mg-20".PHYSICAL REVIEW C 95.1(2017):-. |
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| beta-decay study of （1019KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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