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Wang, N; Wu, XZ; Li, ZX; Wang, N , Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China.
Dynamic study of fusion reactions for Ca-40,Ca-48+Zr-90,Zr-96 around the Coulomb barrier
发表期刊PHYSICAL REVIEW C
关键词Quantum Molecular-dynamics Heavy-ion Collisions Drip-line Nuclei Subbarrier Fusion Fragment Formation Spherical Nuclei State Model
摘要By using the updated improved quantum molecular dynamics model in which a surface-symmetry potential term has been introduced, the excitation functions for fusion reactions of Ca-40,Ca-48+Zr-90,Zr-96 at energies around the Coulomb barrier have been studied. The experimental data of the fusion cross sections for Ca-40+Zr-90,Zr-96 have been reproduced remarkably well without introducing any new parameters. The fusion cross sections for the neutron-rich fusion reactions of Ca-48+Zr-90,Zr-96 around the Coulomb barrier are predicted to be enhanced compared with a non-neutron-rich fusion reaction. In order to clarify the mechanism of the enhancement of the fusion cross sections for neutron-rich nuclear fusions, we pay great attention to studying the dynamic lowering of the Coulomb barrier during a neck formation. The isospin effect on the barrier lowering is investigated. It is interesting that the effect of the projectile and target nuclear structure on fusion dynamics can be revealed to a certain extent in our approach. The time evolution of the N/Z ratio at the neck region has been firstly illustrated. A large enhancement of the N/Z ratio at neck region for neutron-rich nuclear fusion reactions is found.
2003
ISSN0556-2813
卷号67期号:2页码:-
学科领域Physics
收录类别SCI
引用统计
被引频次:35[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13365
专题理论物理所科研产出_SCI论文
通讯作者Wang, N , Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China.
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GB/T 7714
Wang, N,Wu, XZ,Li, ZX,et al. Dynamic study of fusion reactions for Ca-40,Ca-48+Zr-90,Zr-96 around the Coulomb barrier[J]. PHYSICAL REVIEW C,2003,67(2):-.
APA Wang, N,Wu, XZ,Li, ZX,&Wang, N , Inst Atom Energy, POB 275 18, Beijing 102413, Peoples R China..(2003).Dynamic study of fusion reactions for Ca-40,Ca-48+Zr-90,Zr-96 around the Coulomb barrier.PHYSICAL REVIEW C,67(2),-.
MLA Wang, N,et al."Dynamic study of fusion reactions for Ca-40,Ca-48+Zr-90,Zr-96 around the Coulomb barrier".PHYSICAL REVIEW C 67.2(2003):-.
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