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Observation of beta-delayed two-proton emission in the decay of Si-22 | |
Xu, XX; Lin, CJ; Sun, LJ; Wang, JS; Lam, YH; Lee, J; Fang, DQ; Li, ZH; Smirnova, NA; Yuan, CX; Yang, L; Wang, YT; Li, J; Ma, NR; Wang, K; Zang, HL; Wang, HW; Li, C; Liu, ML; Wang, JG; Shi, CZ; Nie, MW; Li, XF; Li, H; Ma, JB; Ma, P; Jin, SL; Huang, MR; Bai, Z; Yang, F; Jia, HM; Liu, ZH; Wang, DX; Yang, YY; Zhou, YJ; Ma, WH; Chen, J; Hu, ZG; Wang, M; Zhang, YH; Ma, XW; Zhou, XH; Ma, YG; Xu, HS; Xiao, GQ; Zhang, HQ | |
2017 | |
Source Publication | PHYSICS LETTERS B
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ISSN | 0370-2693 |
Volume | 766Pages:312-316 |
Subtype | 期刊论文 |
Abstract | The decay of the lightest nucleus with Tz=-3, Si-22, was studied by a silicon array. A charged-particle group at 5600 (70) keV in the decay-energy spectrum was identified experimentally as beta-delayed twoproton emission from the isobaric analog state (IAS) of Al-22. Experimental results of the IAS fed by a superallowed Fermi transition were compared with our large-scale shell-model calculations. The groundstate mass of Si-22 was obtained indirectly in the experiment for the first time. Two-proton separation energy for Si-22 is deduced to be -108(125) keV, which indicates that it is a very marginal candidate for two-proton ground-state emission. (C) 2017 The Authors. Published by Elsevier B.V. |
DOI | 10.1016/j.physletb.2017.01.028 |
Indexed By | SCI |
Language | 英语 |
WOS ID | WOS:000396438300041 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.sinap.ac.cn/handle/331007/27397 |
Collection | 中科院上海应用物理研究所2011-2020年 |
Recommended Citation GB/T 7714 | Xu, XX,Lin, CJ,Sun, LJ,et al. Observation of beta-delayed two-proton emission in the decay of Si-22[J]. PHYSICS LETTERS B,2017,766:312-316. |
APA | Xu, XX.,Lin, CJ.,Sun, LJ.,Wang, JS.,Lam, YH.,...&Zhang, HQ.(2017).Observation of beta-delayed two-proton emission in the decay of Si-22.PHYSICS LETTERS B,766,312-316. |
MLA | Xu, XX,et al."Observation of beta-delayed two-proton emission in the decay of Si-22".PHYSICS LETTERS B 766(2017):312-316. |
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