학술논문
Northern boundary of the 'island of inversion' and triaxiality in 34Si
Document Type
article
Author
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; 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; Z.G. Hu; Y.Y. Yang; P. Ma; J.B. Ma; S.L. Jin; Z. Bai; M.R. Huang; Y.J. Zhou; W.H. Ma; Y. Li; X.H. Zhou; Y.H. Zhang; G.Q. Xiao; W.L. Zhan
Source
Physics Letters B, Vol 772, Iss C, Pp 529-533 (2017)
Subject
Language
English
ISSN
0370-2693
1873-2445
1873-2445
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 22+ state in 34Si 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.