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arXiv 1202.1864nucl-th
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反对称分子动力学及其在团簇现象中的应用

Antisymmetrized molecular dynamics and its applications to cluster phenomena

Yoshiko Kanada-En'yo, Masaaki Kimura, Akira Ono

摘要:

综述了反对称分子动力学(AMD)方法在结构和反应研究中的应用。描述了AMD的时间无关和时间相关版本的应用。在不含时AMD方法应用于原子核结构研究中,我们着重从原子团的角度描述了Be、C、Ne和Mg等丰中子核的结构。讨论了价中子的重要作用。结果表明,在不稳定核和稳定核中也出现了多种团簇结构。讨论了$Z\sim N$核在$p$ -和$sd$ -壳区的形变和团簇现象。含时AMD的应用包括各种主题,如重离子碰撞中的碎裂以及核反应。多重碎裂是重离子碰撞中的一个显著现象,AMD计算成功地描述了多重碎裂。该方法能够将反应和核物质性质联系起来。这些研究表明,在单粒子运动和相关性之间取得重要平衡,形成团簇和碎片。

英文摘要:

Structure and reaction studies with a method of antisymmetrized molecular dynamics (AMD) were reviewed. Applications of time-independent and time-dependent versions of the AMD were described. In applications of time-independent AMD to nuclear structure studies, structures of neutron-rich nuclei such as Be, C, Ne, and Mg isotopes were described focusing on cluster aspects. Important roles of valence neutrons were discussed. The results suggested a variety of cluster structures appear also in unstable nuclei as well as in stable nuclei. Deformation and cluster phenomena in $Z\sim N$ nuclei in $p$- and $sd$- shell regions were also discussed. Applications of time-dependent AMD contain various topics such as fragmentation in heavy-ion collisions as well as nuclear responses. The AMD calculations successfully describe multifragmentation which is one of the remarkable phenomena in heavy-ion collisions. The approach is able to link reactions and nuclear matter properties. The studies suggested the important balance between single-particle motions and correlations to form clusters and fragments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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