Shape coexistence close to <em>N</em>=50 in the neutron-rich isotope <sup>80</sup>Ge investigated by IBM-2

Da-Li Zhang; Cheng-Fu Mu

doi:10.1088/1674-1137/42/3/034101

Chinese Physics C> 2018, Vol. 42> Issue(3) : 034101 DOI: 10.1088/1674-1137/42/3/034101

Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2

Da-Li Zhang ^, ,
Cheng-Fu Mu ^,

1.
Department of Physics, Huzhou University, Huzhou 313000, China

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Abstract：
The properties of the low-lying states, especially the relevant shape coexistence in ⁸⁰Ge, close to one of most neutron-rich doubly magic nuclei at N=50 and Z=28, have been investigated within the framework of the proton-neutron interacting model (IBM-2). Based on the fact that the relative energy of the d neutron boson is different from that of the proton boson, the calculated energy levels of low-lying states and E2 transition strengths can reproduce the experimental data very well. Particularly, the first excited state 0^+₂, which is intimately related to the shape coexistence phenomenon, is reproduced quite nicely. The ρ²(E2, 0₂⁺→0₁⁺) transition strength is also predicted. The experimental data and theoretical results indicate that both collective spherical and γ-soft vibration structures coexist in ⁸⁰Ge.
- 80Ge ,
- low-lying states ,
- E2 transition strengths ,
- shape coexistence ,
- IBM-2

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Da-Li Zhang and Cheng-Fu Mu. Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2[J]. Chinese Physics C, 2018, 42(3): 034101. doi: 10.1088/1674-1137/42/3/034101

Da-Li Zhang and Cheng-Fu Mu. Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2[J]. Chinese Physics C, 2018, 42(3): 034101. doi: 10.1088/1674-1137/42/3/034101 shu

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Received: 2017-10-23

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Supported by National Natural Science Foundation of China (11475062, 11647306, 11147148)

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沈阳化工大学材料科学与工程学院沈阳 110142

Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2

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Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2

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Corresponding author: Cheng-Fu Mu,

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Shape coexistence close to N=50 in the neutron-rich isotope 80Ge investigated by IBM-2

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通讯作者: 陈斌, bchen63@163.com

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Shape coexistence close to N=50 in the neutron-rich isotope 80Ge investigated by IBM-2

Corresponding author: Da-Li Zhang,

Corresponding author: Cheng-Fu Mu,

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Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2

Shape coexistence close to N=50 in the neutron-rich isotope ⁸⁰Ge investigated by IBM-2