Physics Letters B (Sep 2017)
Northern boundary of the “island of inversion” and triaxiality in 34Si
- 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,
- 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
Affiliations
- R. Han
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- X.Q. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- W.G. Jiang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Z.H. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- H. Hua
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- S.Q. Zhang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- C.X. Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
- D.X. Jiang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Y.L. Ye
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- J. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Z.H. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- F.R. Xu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Q.B. Chen
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- J. Meng
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- J.S. Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- C. Xu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Y.L. Sun
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- C.G. Wang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- H.Y. Wu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- C.Y. Niu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- C.G. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- C. He
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- W. Jiang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- P.J. Li
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- H.L. Zang
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- J. Feng
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- S.D. Chen
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- Q. Liu
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- X.C. Chen
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
- H.S. Xu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z.G. Hu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y.Y. Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- P. Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- J.B. Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- S.L. Jin
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z. Bai
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- M.R. Huang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y.J. Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- W.H. Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y. Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- X.H. Zhou
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y.H. Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- G.Q. Xiao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- W.L. Zhan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- DOI
- https://doi.org/10.1016/j.physletb.2017.07.007
- Journal volume & issue
-
Vol. 772,
no. C
pp. 529 – 533
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.
Keywords
