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Short-Lived alpha-Emitting Isotope Np-222 and the Stability of the N=126 Magic Shell

文献类型：期刊论文

作者Ma, L.1; Zhang, Z. Y.1,2; Gan, Z. G.1,2; Zhou, X. H.1,2; Yang, H. B.1; Huang, M. H.1; Yang, C. L.1; Zhang, M. M.1,2; Tian, Y. L.1; Wang, Y. S.1,2,3
刊名PHYSICAL REVIEW LETTERS
出版日期2020-07-13
卷号125期号:3页码:5
ISSN号0031-9007
DOI10.1103/PhysRevLett.125.032502
通讯作者Zhang, Z. Y.(zhangzy@impcas.ac.cn) ; Zhou, X. H.(zxh@impcas.ac.cn)
英文摘要A new, very short-lived neutron-deficient isotope Np-222 was produced in the complete-fusion reaction Re-187(Ar-40, 5n) Np-222, and observed at the gas-filled recoil separator SHANS. The new isotope Np-222 was identified by employing a recoil-alpha correlation measurement, and six alpha-decay chains were established for it. The decay properties of Np-222 with E-alpha = 10016(33) keV and T-1/2 = 380(-110)(+260) ns were determined experimentally. The alpha-decay systematics of Np isotopes is improved by adding the new data for Np-222, which validates the N = 126 shell effect in Np isotopes. The evolution of the N = 126 shell closure is discussed in the neutron-deficient nuclei up to Np within the framework of alpha-decay reduced width.
WOS关键词FILLED RECOIL SEPARATOR ; DECAY PROPERTIES
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDB34010000] ; National Key R&D Program of China[2018YFA0404402] ; Chinese Academy of Sciences[QYZDJ-SSWSLH041] ; National Natural Science Foundation of China[U1732270] ; National Natural Science Foundation of China[11735017] ; National Natural Science Foundation of China[11675225] ; National Natural Science Foundation of China[11635003] ; National Natural Science Foundation of China[U1932139] ; National Natural Science Foundation of China[11975279] ; National Natural Science Foundation of China[11975167] ; National Natural Science Foundation of China[11965003] ; National Natural Science Foundation of China[11805289] ; Youth Innovation Promotion Association CAS[2017456] ; Youth Innovation Promotion Association CAS[2020409] ; Natural Science Foundation of Guangxi[2017GXNSFAA 198160] ; Natural Science Foundation of Guangxi[2017GXNSFGA198001]
WOS研究方向Physics
语种英语
出版者AMER PHYSICAL SOC
WOS记录号WOS:000547891900003
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Key R&D Program of China ; Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Natural Science Foundation of Guangxi
源URL[http://119.78.100.186/handle/113462/140313]  
专题中国科学院近代物理研究所
通讯作者Zhang, Z. Y.; Zhou, X. H.
作者单位1.Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China
2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
3.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China
4.Guangxi Normal Univ, Guangxi Key Lab Nucl Phys & Technol, Guilin 541004, Peoples R China
5.Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China
6.Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
7.Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China
8.Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China
9.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
10.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Ma, L.,Zhang, Z. Y.,Gan, Z. G.,et al. Short-Lived alpha-Emitting Isotope Np-222 and the Stability of the N=126 Magic Shell[J]. PHYSICAL REVIEW LETTERS,2020,125(3):5.
APA Ma, L..,Zhang, Z. Y..,Gan, Z. G..,Zhou, X. H..,Yang, H. B..,...&Xu, H. S..(2020).Short-Lived alpha-Emitting Isotope Np-222 and the Stability of the N=126 Magic Shell.PHYSICAL REVIEW LETTERS,125(3),5.
MLA Ma, L.,et al."Short-Lived alpha-Emitting Isotope Np-222 and the Stability of the N=126 Magic Shell".PHYSICAL REVIEW LETTERS 125.3(2020):5.

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来源：近代物理研究所

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