利用质子-中子相互作用玻色子模型研究152Sm的四极态和八极态

IF 3.4 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

Journal of Physics G: Nuclear and Particle Physics Pub Date : 2023-01-12 DOI:10.1088/1361-6471/acb282

Bao-Yue Hu, Yu Zhang, Gui-Xiu Na, Sheng-Nan Wang, Wei Teng

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引用次数: 0

摘要

介绍了一种基于SU(3)基的质子-中子相互作用玻色子模型(IBM-2)的求解方案，该方案利用IBM-2与八极子玻色子耦合来描述临界点核$^{152}$Sm的低能结构。结果表明，通过简单的哈密顿算符，IBM-2可以很好地捕捉到该核的正宇称带和负宇称带的光谱性质，并提供了IBM-2在过渡系统中统一描述四极和八极态的例子。此外，还对模型中的低自旋态进行了统计分析。

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Quadrupole and octupole states in 152Sm using the proton-neutron interacting boson model

A scheme of solving the proton-neutron interacting boson model (IBM-2) in terms of the SU(3) basis is introduced, by which the IBM-2 coupled with an octupole boson is applied to describe the low-energy structure of the critical point nucleus, $^{152}$Sm. The results indicate that the spectral properties of both the positive-parity bands and negative-parity bands in this nucleus can be well captured by the IBM-2 calculations through a simple Hamiltonian, providing an example of the IBM-2 in a unified description of quadrupole and octupole states in transitional systems. In addition, a statistical analysis of the low-spin states in the model is also provided.

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来源期刊

Journal of Physics G: Nuclear and Particle Physics 物理-物理：核物理

CiteScore

7.60

自引率

5.70%

发文量

105

审稿时长

1 months

期刊介绍： Journal of Physics G: Nuclear and Particle Physics (JPhysG) publishes articles on theoretical and experimental topics in all areas of nuclear and particle physics, including nuclear and particle astrophysics. The journal welcomes submissions from any interface area between these fields. All aspects of fundamental nuclear physics research, including: nuclear forces and few-body systems; nuclear structure and nuclear reactions; rare decays and fundamental symmetries; hadronic physics, lattice QCD; heavy-ion physics; hot and dense matter, QCD phase diagram. All aspects of elementary particle physics research, including: high-energy particle physics; neutrino physics; phenomenology and theory; beyond standard model physics; electroweak interactions; fundamental symmetries. All aspects of nuclear and particle astrophysics including: nuclear physics of stars and stellar explosions; nucleosynthesis; nuclear equation of state; astrophysical neutrino physics; cosmic rays; dark matter. JPhysG publishes a variety of article types for the community. As well as high-quality research papers, this includes our prestigious topical review series, focus issues, and the rapid publication of letters.