Prolate, oblate, and triaxial shape coexistence, and the lost magicity of N=28 in 43S

被引：25
作者：
Kimura, M. [1 ]
Taniguchi, Y. [2 ]
Kanada-En'yo, Y. [3 ]
Horiuchi, H. [4 ]
Ikeda, K. [5 ]
机构：
[1] Hokkaido Univ, Dept Phys, Sapporo, Hokkaido 0010021, Japan
[2] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058571, Japan
[3] Kyoto Univ, Yukawa Inst Theoret Phys, Kyoto 6068502, Japan
[4] Osaka Univ, Res Ctr Nucl Phys, Ibaraki, Osaka 5670047, Japan
[5] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan
来源：
PHYSICAL REVIEW C | 2013年 / 87卷 / 01期
关键词：
ANTISYMMETRIZED MOLECULAR-DYNAMICS; NEUTRON-RICH NUCLEI; SHELL-MODEL; EXCITATION; STATES;
D O I：
10.1103/PhysRevC.87.011301
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We report the low-lying spectrum and collective beta and gamma deformation of S-43 as investigated by antisymmetrized molecular dynamics. Our result successfully explains the observed data including an isomeric 7/2(1)(-) state and illustrates the coexistence of the prolate-deformed ground band with a vanishing N = 28 shell gap, a triaxially deformed isomeric state, and an oblate-deformed excited band at very low excitation energies. DOI: 10.1103/PhysRevC.87.011301
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页数：5
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