Systematic research on alpha-decay rates of spherical and deformed nuclei

doi:10.1016/j.aop.2015.03.001

	Systematic research on alpha-decay rates of spherical and deformed nuclei
	Ni, Dongdong 1,2,3; Ren, Zhongzhou 1,2,3,4,5,6
刊名	ANNALS OF PHYSICS
	2015-07-01
卷号	358 页码:108-128
关键词	alpha decay Half-life Fine structure alpha preformation factor Distorted wave approach Coupled-channel approach
ISSN号	0003-4916
DOI	10.1016/j.aop.2015.03.001
英文摘要	alpha decay is of significant interest for the study of nuclear structure and for the synthesis of new superheavy elements. Theoretical approaches in recent alpha-decay studies are reviewed. After a brief review of the systematic laws of alpha-decay half-lives, various, expressions for the decay width are discussed together with the a preformation factor. These expressions are separately derived within the semiclassical approximation, direct method, distorted wave approach, (modified) two-potential approach, and coupled-channel approach. Within the coupled-channel representation, two techniques to deal with the coupling interaction matrix are discussed for precise descriptions of the alpha-decay fine structure. Various alpha-decay calculations within all these different approaches are presented and compared. It is found that both semiclassical and quantum-mechanical calculations well reproduce the experimental alpha-decay half-lives within a mean factor of about two. However, the semiclassical formalism fails in describing the a transitions to high-lying members of one rotational band, while the coupled-channel approach including enough decay channels gives a precise description of the alpha-decay fine structure observed in heavy deformed nuclei. (C) 2015 Elsevier Inc. All rights reserved.
资助项目	National Natural Science Foundation of China[10735010] ; National Natural Science Foundation of China[10975072] ; National Natural Science Foundation of China[11035001] ; National Natural Science Foundation of China[11120101005] ; National Natural Science Foundation of China[11375086] ; 973 National Major State Basic Research and Development of China[2013CB834400] ; 973 National Major State Basic Research and Development of China[2010CB327803] ; Priority Academic Programme Development of JiangSu Higher Education Institutions (PAPD) ; Research Fund of Doctoral Point (RFDP)[20100091110028] ; Science and Technology Development Fund of Macau[068/2011/A] ; China Postdoctoral Science Foundation
WOS关键词	EVEN-EVEN NUCLEI ; UNIFIED THEORETICAL FRAMEWORK ; DEPENDENT CLUSTER MODEL ; HALF-LIVES ; SPONTANEOUS FISSION ; ATOMIC NUCLEUS ; QUANTUM-THEORY ; EXOTIC DECAY ; RADIOACTIVITY ; STATES
WOS研究方向	Physics
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000356104400007
资助机构	National Natural Science Foundation of China ; 973 National Major State Basic Research and Development of China ; Priority Academic Programme Development of JiangSu Higher Education Institutions (PAPD) ; Research Fund of Doctoral Point (RFDP) ; Science and Technology Development Fund of Macau ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/39936]
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, Inst Acoust, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 2.Nanjing Univ, Inst Acoust, Key Lab Modern Acoust, Nanjing 210093, Jiangsu, Peoples R China 3.Nanjing Univ, Joint Ctr Nucl Sci & Technol, Nanjing 210093, Jiangsu, Peoples R China 4.Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Inst Theoret Phys, Kavli Inst Theoret Phys China, Beijing 100190, Peoples R China 6.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. Systematic research on alpha-decay rates of spherical and deformed nuclei[J]. ANNALS OF PHYSICS,2015,358:108-128.
APA	Ni, Dongdong,&Ren, Zhongzhou.(2015).Systematic research on alpha-decay rates of spherical and deformed nuclei.ANNALS OF PHYSICS,358,108-128.
MLA	Ni, Dongdong,et al."Systematic research on alpha-decay rates of spherical and deformed nuclei".ANNALS OF PHYSICS 358(2015):108-128.