Elucidation of Shell Structure in Unstable Nuclei Based on Microscopic Nucleon-Nucleon Interactions

基于微观核子-核子相互作用阐明不稳定核中的壳结构

• 批准号: 22540266
• 负责人: NAKADA Hitoshi
• 金额: $ 2.66万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540266/
• 关键词: 半現実的核子間有効相互作用; 原子核の殻構造; 自己無撞着平均場理論; テンソ ル力; テンソル力; 対称エネルギー; 陽子泡構造; 形状相転移; 殼構造; 平均場近似; 乱雑位相近似; ガウス関数展開法; 低励起E1遷移; 殻構造; テンソルカ; パイ中間子交換中心力; 対相関

We have developed new effective interactions based on the microscopic nucleon-nucleon interaction. After confirming that the level inversion in the calcium isotopes is quantitatively reproduced by the self-consistent mean-field calculations using these interactions, we have investigated shell structure of spherical nuclei in wide mass range from medium-mass to super-heavy nuclei, and have found several cases in which new magic numbers specific to unstable nuclei may emerge. We have also investigated Coulombic effects on the nuclear pairing, properties of low-energy excitations, and transition from spherical to deformed nuclei.

我们在微观核子-核子相互作用的基础上发展了新的有效相互作用。在确认了钙同位素的能级反转可以用自洽平均场计算定量再现之后，我们研究了从中等质量到超重核的宽质量范围内的球形核的壳结构，发现了几种可能出现新的不稳定核特有幻数的情况.我们还研究了库仑效应对核配对，低能激发的性质，以及从球形到变形核的过渡。

项目成果

The crossover fromvibrational to rotational collectivity in heavy nuclei in theshell-model Monte Carlo approach

壳模型蒙特卡罗方法中重核振动集体与转动集体的交叉

• 发表时间: 2013
• 作者: K. Ishiwata;S. Matsumoto;T. Moroi;中田仁
• 通讯作者: 中田仁

Crossover from vibrational torotational collectivity in heavy nuclei in the shell-model Monte Carloapproach

壳模型蒙特卡罗方法中重核振动旋转集体的交叉

• DOI: 10.1103/physrevlett.110.042502
• 发表时间: 2013
• 期刊: Physical Review Letters
• 影响因子: 8.6
• 作者: C. Oezen;Y. Alhassid and H. Nakada
• 通讯作者: Y. Alhassid and H. Nakada

Mean-Field and RPA Approaches to Stable and Unstable Nuclei with Semi-Realistic NN Interaction

具有半真实神经网络交互作用的稳定和不稳定核的平均场和 RPA 方法

• 发表时间: 2012
• 作者: T.Ito;T.Moroi;H. Nakada
• 通讯作者: H. Nakada

Signatures of phase transitions in nuclei at finite excitation energies

有限激发能量下原子核相变的特征

• DOI: 10.1063/1.4759421
• 发表时间: 2012
• 期刊: AIP Conference Proceedings 1488 "Beauty in Physics: Theory and Experiment: In honor of Francesco Iachello on the occasion of his 70th birthday"
• 作者: Y. Alhassid;C. Oezen and H. Nakada
• 通讯作者: C. Oezen and H. Nakada

Nuclear Shell Structure in Semi-Realistic Mean-Field Approach

半真实平均场方法中的核壳结构

• DOI: 10.1063/1.3628428
• 发表时间: 2011
• 期刊: AIP Conference Proceedings
• 作者: T.Moroi;K.Nakayama;H.Nakada
• 通讯作者: H.Nakada