$^{24}$Mg中棒状结构稳定性的检验

IF 3.2 2区物理与天体物理 Q2 PHYSICS, NUCLEAR

Physical Review C Pub Date : 2014-09-29 DOI:10.1103/PhysRevC.92.011303

Y. Iwata, T. Ichikawa, N. Itagaki, J. Maruhn, T. Otsuka

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引用次数: 11

摘要

基于具有各种skyrme型相互作用的系统曲柄Hartree-Fock计算，研究了$^{24}\ mathm {Mg}$高激发态中棒状结构的稳定存在性。通过允许簇状结构向类壳模型结构过渡来检验其稳定性。特别是，棒状态暴露于两个主要的不稳定性:弯曲运动，这是向低洼态过渡的主要途径;自旋轨道相互作用，这是破坏$\ensuremath{\alpha}$团簇和增强核子独立运动的驱动力。得到了具有大角动量的棒状结构作为亚稳态。

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Examination of the stability of a rod-shaped structure in $^{24}$Mg

The stable existence of rod-shaped structures in highly excited states of $^{24}\mathrm{Mg}$ is studied based on a systematic cranked Hartree-Fock calculation with various Skyrme-type interactions. Its stability is examined by allowing the transition of the clusterlike structure to the shell-model-like structure. Especially, the rod-shaped state is exposed to two major instabilities: the bending motion, which is the main path for the transition to low-lying states, and the spin-orbit interaction, which is the driving force to break the $\ensuremath{\alpha}$ clusters and enhance the independent motion of the nucleons. The rod-shaped structure with large angular momentum is obtained as a metastable stationary state.

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来源期刊

Physical Review C PHYSICS, NUCLEAR-

CiteScore

5.80

自引率

35.50%

发文量

863

期刊介绍： Physical Review C (PRC) is a leading journal in theoretical and experimental nuclear physics, publishing more than two-thirds of the research literature in the field. PRC covers experimental and theoretical results in all aspects of nuclear physics, including: Nucleon-nucleon interaction, few-body systems Nuclear structure Nuclear reactions Relativistic nuclear collisions Hadronic physics and QCD Electroweak interaction, symmetries Nuclear astrophysics