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Fine structure in the alpha decay of U-223

文献类型：期刊论文

作者Sun, M. D.1,2,3; Liu, Z.1,2; Huang, T. H.1,2; Zhang, W. Q.1; Andreyev, A. N.4,5; Ding, B.1; Wang, J. G.1; Liu, X. Y.1,2; Lu, H. Y.1,2; Hou, D. S.1,2
刊名PHYSICS LETTERS B
出版日期2020-01-10
卷号800页码:5
关键词Fine structure alpha decay Spin and parity Reduced alpha-decay width Quadrupole-octupole deformation
ISSN号0370-2693
DOI10.1016/j.physletb.2019.135096
通讯作者Liu, Z.(liuzhong@impcas.ac.cn)
英文摘要Fine structure in the alpha decay of U-223 was observed in the fusion-evaporation reaction Re-187(Ar-40, p3n) by using fast digital pulse processing technique. Two alpha-decay branches of U-223 feeding the ground state and 244 keV excited state of Th-219 were identified by establishing the decay chain U-223 (alpha(1)) under right arrow Th-219 (alpha(2)) under right arrow Ra-215 (alpha(3)) under right arrow Rn-211. The alpha-particle energy for the ground-state to ground-state transition of U-223 was determined to be 8993(17) keV, 213 keV higher than the previous value, the half-life was updated to be 62(-10)(+14) mu s. Evolution of nuclear structure for N = 131 even-Z isotones from Po to U was discussed in the frameworks of nuclear mass and reduced alpha-decay width, a weakening octupole deformation in the ground state of U-223 relative to its lighter isotones Ra-219 and Th-221 was suggested. (C) 2019 The Author(s). Published by Elsevier B.V.
WOS关键词BARRIER PENETRABILITIES ; ODD ; SPECTROSCOPY ; SHAPES ; RN-215
资助项目National Natural Science Foundation of China[11735017] ; National Natural Science Foundation of China[U1732139] ; National Natural Science Foundation of China[11635003] ; National Natural Science Foundation of China[11675225] ; National Natural Science Foundation of China[U1632144] ; National Natural Science Foundation of China[11435014] ; National Key R&D Program of China[2018YFA0404402] ; Hundred Talented Project of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences, Science and Technology Facilities Council (STFC) of the United Kingdom[XDPB09]
WOS研究方向Astronomy & Astrophysics ; Physics
语种英语
WOS记录号WOS:000503832500021
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Key R&D Program of China ; Hundred Talented Project of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences, Science and Technology Facilities Council (STFC) of the United Kingdom
源URL[http://119.78.100.186/handle/113462/141387]  
专题中国科学院近代物理研究所
通讯作者Liu, Z.
作者单位1.Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Gansu, Peoples R China
2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
3.Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China
4.Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England
5.Japan Atom Energy Agcy, ASRC, Tokai, Ibaraki, Japan
6.Peking Univ, Sch Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China
7.China Inst Atom Energy, POB 275 10, Beijing 102413, Peoples R China
8.Albanova Univ Ctr, KTH Royal Inst Technol, SE-10691 Stockholm, Sweden
9.Beijing Normal Univ, Coll Nucl Sci & Technol, Key Lab Beam Technol & Mat Modificat, Minist Educ, Beijing 100875, Peoples R China
10.Beijing Radiat Ctr, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714		 Sun, M. D.,Liu, Z.,Huang, T. H.,et al. Fine structure in the alpha decay of U-223[J]. PHYSICS LETTERS B,2020,800:5.
APA Sun, M. D..,Liu, Z..,Huang, T. H..,Zhang, W. Q..,Andreyev, A. N..,...&Zhang, F. S..(2020).Fine structure in the alpha decay of U-223.PHYSICS LETTERS B,800,5.
MLA Sun, M. D.,et al."Fine structure in the alpha decay of U-223".PHYSICS LETTERS B 800(2020):5.

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来源：近代物理研究所

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