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Applications of Skyrme energy-density functional to fusion reactions for synthesis of superheavy nuclei
Wang, Ning; Wu, Xizhen; Li, Zhuxia; Liu, Min; Scheid, Werner; Wang, N , Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
2006
发表期刊PHYSICAL REVIEW C
ISSN0556-2813
卷号74期号:4页码:-
摘要The Skyrme energy-density functional approach has been extended to study massive heavy-ion fusion reactions. Based on the potential barrier obtained and the parametrized barrier distribution the fusion (capture) excitation functions of a lot of heavy-ion fusion reactions are studied systematically. The average deviations of fusion cross sections at energies near and above the barriers from experimental data are less than 0.05 for 92% of 76 fusion reactions with Z(1)Z(2)< 1200. For the massive fusion reactions, for example, the U-238-induced reactions and Ca-48+Pb-208, the capture excitation functions have been reproduced remarkably well. The influence of structure effects in the reaction partners on the capture cross sections is studied with our parametrized barrier distribution. By comparing the reactions induced by double-magic nucleus Ca-48 and by S-32 and Cl-35, the "threshold-like" behavior in the capture excitation function for Ca-48-induced reactions is explored and an optimal balance between the capture cross section and the excitation energy of the compound nucleus is studied. Finally, the fusion reactions with S-36, Cl-37, Ca-48, and Ti-50 bombarding Cm-248, Bk-247,Bk-249, Cf-250,Cf-252,Cf-254, and Es-252,Es-254, as well as the reactions leading to the same compound nucleus with Z=120 and N=182, are studied further. The calculation results for these reactions are useful for searching for the optimal fusion configuration and suitable incident energy in the synthesis of superheavy nuclei.
部门归属Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany; China Inst Atom Energy, Beijing 102413, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Nucl Theory Ctr, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
关键词Subbarrier Fusion Deformed-nuclei Quasi-fission Heavy-nuclei Barrier Collisions Model
学科领域Physics
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收录类别SCI
WOS记录号WOS:000241723800025
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5892
专题理论物理所1978-2010年知识产出
通讯作者Wang, N , Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany
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Wang, Ning,Wu, Xizhen,Li, Zhuxia,et al. Applications of Skyrme energy-density functional to fusion reactions for synthesis of superheavy nuclei[J]. PHYSICAL REVIEW C,2006,74(4):-.
APA Wang, Ning,Wu, Xizhen,Li, Zhuxia,Liu, Min,Scheid, Werner,&Wang, N , Univ Giessen, Inst Theoret Phys, D-35392 Giessen, Germany.(2006).Applications of Skyrme energy-density functional to fusion reactions for synthesis of superheavy nuclei.PHYSICAL REVIEW C,74(4),-.
MLA Wang, Ning,et al."Applications of Skyrme energy-density functional to fusion reactions for synthesis of superheavy nuclei".PHYSICAL REVIEW C 74.4(2006):-.
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