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题名: Systematics of capture and fusion dynamics in heavy-ion collisions
作者: Wang, B ;  Wen, K ;  Zhao, WJ ;  Zhao, EG ;  Zhou, SG
刊名: ATOMIC DATA AND NUCLEAR DATA TABLES
出版日期: 2017
卷号: 114, 页码:281-370
关键词: Capture process ;  Fusion dynamics ;  Barrier distribution ;  Empirical coupled-channel model ;  Coupled-channel effects ;  Neutron transfer effect
学科分类: Physics
DOI: http://dx.doi.org/10.1016/j.adt.2016.06.003
通讯作者: Zhou, SG (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: We perform a systematic study of capture excitation functions by using an empirical coupled-channel (ECC) model. In this model, a barrier distribution is used to take effectively into account the effects of couplings between the relative motion and intrinsic degrees of freedom. The shape of the barrier distribution is of an asymmetric Gaussian form. The effect of neutron transfer channels is also included in the barrier distribution. Based on the interaction potential between the projectile and the target, empirical formulas are proposed to determine the parameters of the barrier distribution. Theoretical estimates for barrier distributions and calculated capture cross sections together with experimental cross sections of 220 reaction systems with 182 <= Z(P)Z(T) <= 1640 are tabulated. The results show that the ECC model together with the empirical formulas for parameters of the barrier distribution work quite well in the energy region around the Coulomb barrier. This ECC model can provide prediction of capture cross sections for the synthesis of superheavy nuclei as well as valuable information on capture and fusion dynamics. (C) 2016 Elsevier Inc. All rights reserved.
类目[WOS]: Physics, Atomic, Molecular & Chemical ;  Physics, Nuclear
关键词[WOS]: NEAR-BARRIER ENERGIES ;  QUANTUM MOLECULAR-DYNAMICS ;  WEAKLY-BOUND NUCLEI ;  SUBBARRIER FUSION ;  CROSS-SECTIONS ;  COULOMB BARRIER ;  EXCITATION-FUNCTIONS ;  COMPOUND NUCLEUS ;  ENTRANCE CHANNEL ;  QUASI-FISSION
项目资助者: National Key Basic Research Program of China [2013CB834400] ;  National Natural Science Foundation of China [11121403, 11175252, 11120101005, 11275248, 11475115, 11525524, 11621131001] ;  Chinese Academy of Sciences [KJCX2-EW-N01]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/22117
Appears in Collections:理论物理所2017年知识产出_期刊论文

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Recommended Citation:
Wang, B,Wen, K,Zhao, WJ,et al. Systematics of capture and fusion dynamics in heavy-ion collisions[J]. ATOMIC DATA AND NUCLEAR DATA TABLES,2017,114:281-370.
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