Correlations of two protons emitted from excited states of S-28 and P-27

doi:10.1016/j.physletb.2013.10.029

	Correlations of two protons emitted from excited states of S-28 and P-27
	Xu, XX 1; Lin, CJ 1; Jia, HM 1; Yang, F 1; Zhang, HQ 1; Liu, ZH 1; Wu, ZD 1; Yang, L 1; Bao, PF 1; Sun, LJ 1
刊名	PHYSICS LETTERS B
	2013
卷号	727 页码:126-129
关键词	2-proton Radioactivity Nuclei Shell Emission Decay Halos Line
ISSN号	0370-2693
DOI	10.1016/j.physletb.2013.10.029
英文摘要	A contrastive research on two-proton (2p) emissions from excited states of the even-Z nucleus S-28 and its one-proton daughter, the odd-Z nucleus P-27 was performed by complete-kinematics measurements. The opening angles as well as relative momenta between two emitted protons and invariant masses of decaying systems were reconstructed through the event-by-event analysis of heavy fragments coincident with two protons. With the help of Monte Carlo simulations, results show a diproton-type decay with the branching ratio of 20(-7)(+6)% for S-28 while mainly three-body simultaneous decay in the phase space and/or 2p sequential emission for P-27. Present results show that the diproton correlations may result from the proton configuration in the initial state like 2p skin/halo structure rather than the deformed orbit. (C) 2013 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[10735100] ; National Natural Science Foundation of China[11005156] ; National Natural Science Foundation of China[11005154] ; National Natural Science Foundation of China[11075216]
WOS关键词	2-PROTON RADIOACTIVITY ; NUCLEI ; SHELL ; EMISSION ; DECAY ; HALOS ; LINE
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000328518400012
资助机构	National Key Basic Research Program of China ; National Key Basic Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.impcas.ac.cn/handle/113462/23391]
专题	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	Lin, CJ (reprint author), China Inst Atom Energy, Inst Nucl Phys, Beijing 102413, Peoples R China.
作者单位	1.China Inst Atom Energy, Inst Nucl Phys, Beijing 102413, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 73000, Peoples R China
推荐引用方式 GB/T 7714	Xu, XX,Lin, CJ,Jia, HM,et al. Correlations of two protons emitted from excited states of S-28 and P-27[J]. PHYSICS LETTERS B,2013,727:126-129.
APA	Xu, XX.,Lin, CJ.,Jia, HM.,Yang, F.,Zhang, HQ.,...&Lin, CJ .(2013).Correlations of two protons emitted from excited states of S-28 and P-27.PHYSICS LETTERS B,727,126-129.
MLA	Xu, XX,et al."Correlations of two protons emitted from excited states of S-28 and P-27".PHYSICS LETTERS B 727(2013):126-129.