New Isotope Np-220: Probing the Robustness of the N=126 Shell Closure in Neptunium
文献类型：期刊论文
| 作者 | Zhang, ZY; Gan, ZG; Yang, HB; Ma, L; Huang, MH; Yang, CL; Zhang, MM; Tian, YL; Wang, YS; Sun, MD |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2019 |
| 卷号 | 122期号:19页码:192503 |
| ISSN号 | 0031-9007 |
| 关键词 | DECAY PROPERTIES NUCLEAR SEPARATOR STATE |
| DOI | 10.1103/PhysRevLett.122.192503 |
| 英文摘要 | A new short-lived neutron-deficient isotope Np-220 was synthesized in the fusion-evaporation reaction Re-185(Ar-40, 5n)Np-220 at the gas-filled recoil separator SHANS. Based on the measurement of the correlated alpha-decay chains, the decay properties of Np-220 with E-alpha = 10040(18) keV and T-1/2 = 25(-7)(+14 )mu s were determined, which are in good agreement with theoretical predictions. From the new experimental results coupled with the recently reported alpha-decay data of Np-219,Np-223, the alpha-decay systematics for Np isotopes around N = 126 was established, which allows us for the first time to test the robustness of the N = 126 shell closure in Z = 93 Np isotopes. The results also indicate that, in the region of nuclei with Z >= 83, the proton drip line has been reached for all odd-Z isotopes up to Np. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23431]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Huang, W. X. 2.Liu, Z. 3.Zhou, X. H. 4.Xu, H. S.] Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China 5.Xu, H. S.] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China 6.[Wang, Y. S. 7.Sun, M. D.] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 8.[Zhou, H. B.] Guangxi Normal Univ, Guangxi Key Lab Nucl Phys & Technol, Guilin 541004, Peoples R China 9.[Zhang, Z. Y. 10.Gan, Z. G. |
| 推荐引用方式 GB/T 7714 | Zhang, ZY,Gan, ZG,Yang, HB,et al. New Isotope Np-220: Probing the Robustness of the N=126 Shell Closure in Neptunium[J]. PHYSICAL REVIEW LETTERS,2019,122(19):192503. |
| APA | Zhang, ZY.,Gan, ZG.,Yang, HB.,Ma, L.,Huang, MH.,...&Polyakov, AN.(2019).New Isotope Np-220: Probing the Robustness of the N=126 Shell Closure in Neptunium.PHYSICAL REVIEW LETTERS,122(19),192503. |
| MLA | Zhang, ZY,et al."New Isotope Np-220: Probing the Robustness of the N=126 Shell Closure in Neptunium".PHYSICAL REVIEW LETTERS 122.19(2019):192503. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。