论文标题

增强富含中子核旋转的惯性矩

Enhanced moments of inertia for rotation in neutron-rich nuclei

论文作者

Yoshida, Kenichi

论文摘要

从质子滴注线到中子滴至$ z = 120 $和$ n = 184 $,研究了大约1700个均匀的核的惯性矩(MOI)。曲柄的Skyrme-Hartree-fock-Bogoliubov方程在坐标空间中求解。该模型很好地描述了具有明显变形的300多个核素的可用实验数据。我发现MOI在滴水线附近大大增加,而变形不如经验关系估计的那么强。激发能的系统测量以及富含中子的核中第一个$ i^π= 2^+$状态的过渡概率不仅揭示了变形的演变,而且还可以限制有效的一对相互作用。

Ground-state moments of inertia (MoI) are investigated for about 1700 even-even nuclei from the proton drip line to the neutron drip line up to $Z=120$ and $N=184$. The cranked Skyrme-Hartree-Fock-Bogoliubov equation is solved in the coordinate space. This model describes well the available experimental data of more than 300 nuclides possessing an appreciable deformation. I find that the MoI greatly increase near the drip line whereas the deformation is not as strong as estimated by the empirical relation. Systematic measurements of the excitation energy and the transition probability to the first $I^π=2^+$ state in neutron-rich nuclei not only reveal the evolution of deformation but can also constrain an effective pair interaction.

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