Northern boundary of the “island of inversion” and triaxiality in 34Si

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 i...

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Main Authors: 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
Format: Article
Language:English
Published: Elsevier 2017-09-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269317305543
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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
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
author_facet 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
author_sort R. Han
collection DOAJ
description 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.
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spelling doaj.art-0d0a3f95e99e4ab7862570e7c22a89a02022-12-22T00:59:37ZengElsevierPhysics Letters B0370-26931873-24452017-09-01772C52953310.1016/j.physletb.2017.07.007Northern boundary of the “island of inversion” and triaxiality in 34SiR. Han0X.Q. Li1W.G. Jiang2Z.H. Li3H. Hua4S.Q. Zhang5C.X. Yuan6D.X. Jiang7Y.L. Ye8J. Li9Z.H. Li10F.R. Xu11Q.B. Chen12J. Meng13J.S. Wang14C. Xu15Y.L. Sun16C.G. Wang17H.Y. Wu18C.Y. Niu19C.G. Li20C. He21W. Jiang22P.J. Li23H.L. Zang24J. Feng25S.D. Chen26Q. Liu27X.C. Chen28H.S. Xu29Z.G. Hu30Y.Y. Yang31P. Ma32J.B. Ma33S.L. Jin34Z. Bai35M.R. Huang36Y.J. Zhou37W.H. Ma38Y. Li39X.H. Zhou40Y.H. Zhang41G.Q. Xiao42W.L. Zhan43School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaSchool of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, Chinaβ-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.http://www.sciencedirect.com/science/article/pii/S0370269317305543Island of inversionβ-decayHalf-lifeTriaxialityShell model
spellingShingle 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
Northern boundary of the “island of inversion” and triaxiality in 34Si
Physics Letters B
Island of inversion
β-decay
Half-life
Triaxiality
Shell model
title Northern boundary of the “island of inversion” and triaxiality in 34Si
title_full Northern boundary of the “island of inversion” and triaxiality in 34Si
title_fullStr Northern boundary of the “island of inversion” and triaxiality in 34Si
title_full_unstemmed Northern boundary of the “island of inversion” and triaxiality in 34Si
title_short Northern boundary of the “island of inversion” and triaxiality in 34Si
title_sort northern boundary of the island of inversion and triaxiality in 34si
topic Island of inversion
β-decay
Half-life
Triaxiality
Shell model
url http://www.sciencedirect.com/science/article/pii/S0370269317305543
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