Northern boundary of the "island of inversion" and triaxiality in Si-34
Northern boundary of the "island of inversion" and triaxiality in Si-34
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Si-34“逆转岛”北边界和三轴度
DOI：
10.1016/j.physletb.2017.07.007
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
H.S. Xu
中科院分区：
文献类型：
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作者：
R. Han;X.Q. Li;W.G. Jiang;Z.H. Li;H. Hua;S.Q. Zhang;C.X. Yuan;D.X. Jiang;Y.L. Ye;J. Li;Z.H. Li;F.R. Xu;Q.B. Chen;J. Meng;J.S. Wang;C. Xu;Y.L. Sun;C.G. Wang;H.Y. Wu;C.Y. Niu;C.G. Li;C. He;W. Jiang;P.J. Li;H.L. Zang;J. Feng;S.D Chen;Q. Liu;X.C. Chen;H.S. Xu
摘要对“反转岛”及其周围的丰中子核进行了β衰变研究。随着系统的调查半衰期的等张链从N= 19至22，在Z= 13观察到的明显扭结提供了一个明确的签名边界上的北方（高Z）的岛屿。通过与Gogny D1 S和SDPF-M相互作用的壳模型计算结果的比较，发现了4519 keV的34 Si中的一个新的2 2+态，为该区域的三轴性提供了实验证据，并进一步揭示了岛的北方边界的跃迁结构.
Abstract β-decay studies of neutron-rich nuclei in and around the “island of inversion” have been performed. With a systematic investigation of half-lives for the isotonic chains from N= 19 to 22, conspicuous kinks observed at Z= 13 provide a clear signature of a boundary on the northern (high-Z) side of the island. Based on the comparison with shell model calculations using Gogny D1S and SDPF-M interactions, a newly determined 2 2+ state in 34 Si at 4519 keV presents an experimental evidence of triaxiality in this region and sheds more light on the structure of the transition across the northern boundary of the island.