Experimental study of the beta-delayed neutron decay of N-21

doi:10.1103/PhysRevC.80.054315

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	Experimental study of the beta-delayed neutron decay of N-21
	Li, Z. H.1,2; Lou, J. L.1,2; Ye, Y. L.1,2; Hua, H.1,2; Jiang, D. X.1,2; Li, X. Q.1,2; Zhang, S. Q.1,2; Zheng, T.1,2; Ge, Y. C.1,2; Kong, Z.1,2
刊名	PHYSICAL REVIEW C
	2009-11-01
卷号	80 期号:5 页码:8
ISSN号	0556-2813
DOI	10.1103/PhysRevC.80.054315
英文摘要	The first spectroscopic study for the beta decay of N-21 is carried out based on beta-n, beta-gamma, and beta-n-gamma coincidence measurements. The neutron-rich N-21 nuclei are produced by the fragmentation of the E/A=68.8 MeV Mg-26 primary beam on a thick Be-9 target and are implanted into a thin plastic scintillator that also plays the role of beta detector. The time of flight of the emitted neutrons following the beta decay are measured by the surrounding neutron sphere and neutron wall arrays. In addition, four clover germanium detectors are used to detect the beta-delayed gamma rays. Thirteen new beta-delayed neutron groups are observed with a total branching ratio of 90.5 +/- 4.2%. The half-life for the beta decay of N-21 is determined to be 82.9 +/- 7.5 ms. The level scheme of O-21 is deduced up to about 9 MeV excitation energy. The experimental results for the beta decay of N-21 are compared to the shell-model calculations.
资助项目	National Basic Research Program (973 program) of China[2007CB815002] ; National Natural Science Foundation of China[10775003] ; National Natural Science Foundation of China[10475004] ; National Natural Science Foundation of China[10735010] ; National Natural Science Foundation of China[10775005] ; National Natural Science Foundation of China[10875002] ; National Natural Science Foundation of China[10827505]
WOS关键词	EFFICIENCY
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000272313000029
资助机构	National Basic Research Program (973 program) of China ; National Natural Science Foundation of China
公开日期	2010-10-29
内容类型	期刊论文
源URL	[http://ir.imp.cas.cn/handle/113462/5321]
专题	近代物理研究所_近代物理研究所知识存储（2010之前）近代物理研究所_实验物理中心近代物理研究所_兰州重离子研究装置中国科学院近代物理研究所
通讯作者	Li, Z. H.
作者单位	1.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 2.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li, Z. H.,Lou, J. L.,Ye, Y. L.,et al. Experimental study of the beta-delayed neutron decay of N-21[J]. PHYSICAL REVIEW C,2009,80(5):8.
APA	Li, Z. H..,Lou, J. L..,Ye, Y. L..,Hua, H..,Jiang, D. X..,...&Gao, Q..(2009).Experimental study of the beta-delayed neutron decay of N-21.PHYSICAL REVIEW C,80(5),8.
MLA	Li, Z. H.,et al."Experimental study of the beta-delayed neutron decay of N-21".PHYSICAL REVIEW C 80.5(2009):8.