Study of New-type Cluster Structure of Atomic Nuclei

新型原子核团簇结构的研究

• 批准号: 16540248
• 负责人: HORIUCHI Hisashi
• 金额: $ 2.18万
• 依托单位: Osaka University (2006)Kyoto University (2004-2005)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16540248/
• 关键词: neutron-rich nuclei; AMD; di-neutron; 3-alpha Bose condensed state; 4-alpha Bose condensed state; 4-alpha orthogonality condition model; resonance state; superdeformed state; 非弾性電子散乱; Hoyle状態; ^<12>C+αのクラスター構造; 直交条件模型; 新ACCC法; Skyrme HF計算; ク

Corresponding intimately to the recent research trend, we investigated various new-types of cluster structure in wide region of the nuclear chart.Our study was made for three major subjects, "Cluster structure in neutron-rich nuclei", "Gas states of clusters", and "Superdeformation and cluster structure".For the subject "Cluster structure in neutron-rich nuclei", " Neutron-rich Ne isotopes studied with AMD (antisymmetrized molecular dynamics) " was the first theme pursuied by summarizing the former studies before 2004. The new theme for this subject was " Study of di-neutron cluster correlation " and we developed a new theoretical formalism which combines the use of the condensed wave function of di-neutron cluster and the AMD.For the subject "Gas states of clusters" which was the central subject of this research project, we intensively pursuied " Study of Bose-cindensed states of alpha clusters in 12C and 160 " with close collaboration with experimentalists. For 12C our study reached … More the stage where the existence of 3-alpha condensed state and its excited states was confirmed with high reliability. For 160, we initiated the study by the use of the 4-alpha orthogonality condition model and identified cadidates of the 4-alpha condensed state in the vicinity of the 4-alpha breakup threshold. In these studies, we constructed a new theoretical method to treat resonances with wide width and utilized it extensively for our actual analyses.For the subjects, "Superdeformation and cluster structure", "' Study of the relation between superdeformed states in 32S and 160+160 molecular states " was the first theme pursuied by summarizing the former studies before 2004. The main theme for this subject was " Study of superdefoed states and cluster states in 40Ca and 44Ti ". We clarified the mutual penetration of mean-field-like structure and cluste structure and also the coexistence of these two structures which result in various types of ground and excited states. For these studies we developed " New method of variational calculation with a newly invented constraint for the cluster structure " and utilized it extensively, for actual analyses. We also made a study on " Cluster components contained in the Hartree-Fock wave functions ". Less

与最近的研究趋势密切相对应，我们研究了核图表广泛区域的各种新型聚类结构的新型。 dynamics) " was the first theme pursued by summarizing the former studies before 2004. The new theme for this subject was " Study of di-neutron cluster correlation " and we developed a new theoretical formatism which combines the use of the condensed wave function of di-neutron cluster and the AMD.For the subject "Gas states of clusters" which was the central subject of this research project, we intensively pursued " Study of Bose-cindensed states of与实验者密切合作，在12C和160英寸的Alpha聚类。对于12C，我们的研究达到了……更多的阶段，存在3-α凝结状态及其激发状态的阶段，并具有很高的可靠性。在160中，我们通过使用4-alpha正交状况模型并确定了4-Alpha凝结状态在4-Alpha破裂阈值附近的4-Alpha凝结状态的会计。在这些研究中，我们构建了一种新的理论方法，可以广泛宽度处理共鸣，并为我们的实际分析进行广泛使用。对于受试者，“超级形成和群集结构”，'对32S和160+160个分子状态的超级成式状态之间的关系的研究是对以前的研究的第一个主题。簇状态在40CA和44TI中。我们阐明了平均场状结构和cluste结构的相互渗透以及这两种结构的共存，这些结构导致了各种类型的地面和激发态。在这些研究中，我们开发了“新的变异计算方法，并针对集群结构进行了新发明的约束”，并广泛利用了它，以进行实际分析。我们还研究了“ Hartree-Fock Wave功能中包含的群集成分”。较少的

项目成果

Inelastic Form Factors to Alpha-Particle Condensate Statesin 12C and 160 : What Can We Learn?

12C 和 160 中 α 粒子凝聚态的非弹性形状因子：我们可以学到什么？

• 发表时间: 2006
• 期刊: European Physical Journal A 28
• 作者: T.Tatsumi;E.Nakano;K.Nawa;Y.Funaki;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki
• 通讯作者: Y.Funaki

Resonance States in 12C and alpha-Particle Condensation

12C 和 α 粒子凝聚的共振态

• 发表时间: 2005
• 期刊: European Physical Journal A 24
• 作者: T.Tatsumi;E.Nakano;K.Nawa;Y.Funaki;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki;J.A.Maruhn;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki;Y.Funaki
• 通讯作者: Y.Funaki

Explicit Treatment of Tensor Force with the Method of Antisymmetrized Molecular Dynamics

用反对称分子动力学方法显式处理张量力

• 发表时间: 2006
• 期刊: Progress of Theoretical Physics 115
• 作者: T.Tatsumi;E.Nakano;K.Nawa;Y.Funaki;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki;J.A.Maruhn;M.Kimura;A.Dote
• 通讯作者: A.Dote

160 + 160 Molecular Nature of the Superdeformed Band of 32S and the Evolution of the Molecular Structure

160 160 32S超变形能带的分子性质及分子结构的演化

• 发表时间: 2004
• 期刊: Physical Review C 69
• 作者: T.Tatsumi;E.Nakano;K.Nawa;Y.Funaki;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki;J.A.Maruhn;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki;Y.Funaki;Y.Funaki;H.Takemoto;M.Kimura
• 通讯作者: M.Kimura

Clustering Phenomena in Nuclear Matter below Saturation Density

低于饱和密度的核物质的聚集现象

• 发表时间: 2004
• 期刊: Physical Review C 69
• 作者: T.Tatsumi;E.Nakano;K.Nawa;Y.Funaki;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki;J.A.Maruhn;M.Kimura;A.Dote;Y.Funaki;J.A.Maruhn;Y.Funaki;Y.Funaki;Y.Funaki;H.Takemoto
• 通讯作者: H.Takemoto