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原子核的结团效应研究(英文)
Investigations of Cluster Effects in Atomic Nuclei
【摘要】 介绍了近期关于原子核结团效应的研究。利用Tohsaki-Horiuchi-Schuck-Ropke(THSR)波函数研究了20Ne和9,10Be等原子核的结团结构。研究发现单个的THSR波函数即可很好地描述原子核的结团态。利用hybrid-THSRBrink波函数,发现了原子核结团的非局域化动力学性质。拓展了THSR波函数并使其能够应用于N≠Z的原子核之中。这一波函数正确地重现了9,10Be同位素的较低能级中的核分子轨道结构。还讨论了丰质子/中子原子核中的α-衰变过程。研究发现质子/中子皮对α-衰变寿命有显著影响。
【Abstract】 We introduce our recent works on the clustering effects in atomic nuclear systems. The clustering structures for20 Ne and9,10 Be isotopes are studied with the Tohsaki-Horiuchi-Schuck-R¨opke(THSR) wave function. It is found that a single THSR wave function can provide good description for the cluster state. The nonlocalised aspect of cluster dynamics is discovered with the hybrid-THSR-Brink wave function. Extensions are made for the THSR wave function to enable studies of N ?= Z nuclei. The nuclear molecular orbit structures in low lying states of9,10 Be isotopes are correctly reproduced with this wave function. We also discuss the α-decay processes for proton/neutron-rich nuclei. The effect of proton/neutron skin is found to be considerable on α-decay half-life.
【Key words】 cluster structure; nonlocalised cluster dynamics; neutron-rich nuclei; α-decay;
- 【文献出处】 原子核物理评论 ,Nuclear Physics Review , 编辑部邮箱 ,2017年03期
- 【分类号】O571
- 【被引频次】3
- 【下载频次】75