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CAS OpenIR  > 中科院上海应用物理研究所2011-2017年  > 期刊论文
题名:
beta-decay study of the T-z =-2 proton-rich nucleus Mg-20
作者: 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
刊名: PHYSICAL REVIEW C
出版日期: 2017
卷号: 95, 期号:1, 页码:-
DOI: 10.1103/PhysRevC.95.014314
文章类型: 期刊论文
英文摘要: 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.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000391860300003
ISSN号: 2469-9985
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27266
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
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,2017-01-01,95(1):-.
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文件名: beta-decay study of the T-z =-2 proton-rich nucleus Mg-20.pdf
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