Half-lives and fine structure for the alpha decay of deformed even-even nuclei

doi:10.1007/s11433-011-4435-5

	Half-lives and fine structure for the alpha decay of deformed even-even nuclei
	Ni DongDong 1,2; Ren ZhongZhou 1,2,3
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2011-08-01
卷号	54 页码:S24-S31
关键词	alpha decay half-lives cluster model coupled channel approach
ISSN号	1674-7348
DOI	10.1007/s11433-011-4435-5
英文摘要	The alpha-decay properties of well-deformed even-even nuclei are systematically calculated within the multichannel cluster model (MCCM). Instead of working in the WKB framework, the quasibound solution to the coupled Schrodinger equation is presented with outgoing wave boundary conditions, and the coupling potential is taken into full account in terms of the general quantum theories. The calculated alpha-decay half-lives are found to agree well with the experimental data with a mean factor of less than 2. The fine structure observed in alpha decay is also well reproduced by the four-channel microscopic calculation. Very strikingly, the MCCM can give relatively precise descriptions of the branching ratio to excited 4(+) states, which is often overestimated in the usual WKB calculations. We expect it to be a significant development of theoretical models toward quantitative descriptions of alpha transitions to high-spin daughter states.
资助项目	National Natural Science Foundation of China[10535010] ; National Natural Science Foundation of China[10675090] ; National Natural Science Foundation of China[10775068] ; National Natural Science Foundation of China[10735010] ; National Natural Science Foundation of China[10975072] ; National Natural Science Foundation of China[11035001] ; National Basic Research Program of China[2007CB815004] ; National Basic Research Program of China[2010CB327803] ; Chinese Academy of Sciences[KJCX2-SW-N02] ; Research Fund of Doctoral Point (RFDP)[20070284016]
WOS关键词	DEPENDENT CLUSTER MODEL ; QUANTUM-THEORY ; EMISSION ; STATES ; SHELL ; WIDTH
WOS研究方向	Physics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000302529300005
资助机构	National Natural Science Foundation of China ; National Basic Research Program of China ; Chinese Academy of Sciences ; Research Fund of Doctoral Point (RFDP)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/34643]
专题	中国科学院近代物理研究所
通讯作者	Ren ZhongZhou
作者单位	1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 2.Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China 3.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Ni DongDong,Ren ZhongZhou. Half-lives and fine structure for the alpha decay of deformed even-even nuclei[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2011,54:S24-S31.
APA	Ni DongDong,&Ren ZhongZhou.(2011).Half-lives and fine structure for the alpha decay of deformed even-even nuclei.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,54,S24-S31.
MLA	Ni DongDong,et al."Half-lives and fine structure for the alpha decay of deformed even-even nuclei".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 54(2011):S24-S31.