Observation of beta-delayed two-proton emission in the decay of Si-22

doi:10.1016/j.physletb.2017.01.028

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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
刊名	PHYSICS LETTERS B
	2017
卷号	766 页码:312-316
ISSN号	0370-2693
DOI	10.1016/j.physletb.2017.01.028
文献子类	期刊论文
英文摘要	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.
语种	英语
WOS记录号	WOS:000396438300041
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/27397]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 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.