Direct observation of the exotic β−γ−α decay mode in the Tz=−1 nucleus Na20

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成果类型：

期刊论文

作者：

Wang, Y. B.*;Su, J.;Han, Z. Y.;Tang, B.;Cui, B. Q.;...

通讯作者：

Wang, Y. B.

作者机构：

[Yan, S. Q.; Ge, T.; Zeng, S.; Li, X. Y.; Ma, T. L.; Liu, F. L.; Su, Y.; Ma, R. G.; Nan, D.; Zhang, L.; Zhang, H.; Dang, Y. L.; Fu, G. Y.; Chen, L. H.; Li, Z. H.; Wu, D.; Lyu, Y. L.; Zheng, Y.; Li, Y. J.; Ma, X.; Liu, W. P.; Tang, B.; Shen, Y. P.; Guo, B.; Lian, G.; Wang, Y. B.; Han, Z. Y.; Cui, B. Q.; Zhang, T. J.; He, Y. F.] China Inst Atom Energy, POB 275 10, Beijing 102413, Peoples R China.

[Su, J.] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China.

[Brown, B. A.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.

[Brown, B. A.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.

[Yuan, C. X.] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China.

通讯机构：

[Wang, Y. B.] C

China Inst Atom Energy, POB 275 10, Beijing 102413, Peoples R China.

语种：

英文

期刊：

PHYSICAL REVIEW C

ISSN：

2469-9985

年：

2021

卷：

103

期：

页码：

L011301

DOI：

10.1103/PhysRevC.103.L011301

基金类别：

National Key Research and Development Project [2016YFA0400502]; Continuous Basic Scientific Research Project [WDJC-2019-13]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11875322, 11327508, 11490560, U1867211, U1867214]; NSFNational Science Foundation (NSF) [PHY-1811855]; CUSTIPEN (China-U.S. Theory Institute for Physics with Exotic Nuclei) - US Department of Energy, Office of Science [DE-SC0009971]

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院系归属：

核科学技术学院

摘要：

The exotic beta-gamma-alpha decay mode of Na-20 has been directly observed for the first time in the Day-one experiment at the Beijing Radioactive Ion-beam Facility. The Na-20 source was produced by using a 100-MeV proton beam bombarding a stack of microporous MgO thick target and delivered as an intense mass separated beam after online ionization. A high-efficiency simultaneous measurement of beta, gamma, and alpha transitions enables the beta-delayed gamma-gamma and alpha-gamma coincidence spectroscopy. Three beta-gamma-alpha exotic decay sequences in Na-20 are discovered, which expands the ...

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Direct observation of the exotic β−γ−α decay mode in the Tz=−1 nucleus Na20

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