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Energy dependence of the nucleus-nucleus potential and the friction parameter in fusion reactions
Wen, K; Sakata, F; Li, ZX; Wu, XZ; Zhang, YX; Zhou, SG; Wen, K (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2014
发表期刊PHYSICAL REVIEW C
卷号90期号:5页码:54613
文章类型Article
摘要

Applying a macroscopic reduction procedure to the improved quantum molecular dynamics ( ImQMD) model, the energy dependences of the nucleus-nucleus potential, the friction parameter, and the random force characterizing a one-dimensional Langevin-type description of the heavy-ion fusion process are investigated. Systematic calculations with the ImQMD model show that the fluctuation-dissipation relation found in symmetric head-on fusion reactions at energies just above the Coulomb barrier fades out when the incident energy increases. It turns out that this dynamical change with increasing incident energy is caused by a specific behavior of the friction parameter which directly depends on the microscopic dynamical process, i.e., on how the collective energy of the relative motion is transferred into the intrinsic excitation energy. It is shown microscopically that the energy dissipation in the fusion process is governed by two mechanisms: One is caused by the nucleon exchanges between two fusing nuclei, and the other is due to a rearrangement of nucleons in the intrinsic system. The former mechanism monotonically increases the dissipative energy and shows a weak dependence on the incident energy, while the latter depends on both the relative distance between two fusing nuclei and the incident energy. It is shown that the latter mechanism is responsible for the energy dependence of the fusion potential and explains the fading out of the fluctuation-dissipation relation.

合作性质国际
学科领域Physics
资助者National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046]
DOIhttp://dx.doi.org/10.1103/PhysRevC.90.054613
关键词[WOS]Heavy-ion Collisions ; Antisymmetrized Molecular-dynamics ; Superheavy Nuclei ; Dinuclear System ; Hartree-fock ; Balance Energy ; Dissipation ; Elements ; Fission ; Barrier
收录类别SCI
语种英语
资助者National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; National Natural Science Foundation of China [11075215, 11121403, 11120101005, 11275052, 11275248, 11375062] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046] ; Chinese Academy of Sciences (CAS) Visiting Professorship for Senior International Scientists [2013T1J0046]
WOS类目Physics, Nuclear
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21253
专题计算平台成果
通讯作者Wen, K (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Wen, K,Sakata, F,Li, ZX,et al. Energy dependence of the nucleus-nucleus potential and the friction parameter in fusion reactions[J]. PHYSICAL REVIEW C,2014,90(5):54613.
APA Wen, K.,Sakata, F.,Li, ZX.,Wu, XZ.,Zhang, YX.,...&Wen, K .(2014).Energy dependence of the nucleus-nucleus potential and the friction parameter in fusion reactions.PHYSICAL REVIEW C,90(5),54613.
MLA Wen, K,et al."Energy dependence of the nucleus-nucleus potential and the friction parameter in fusion reactions".PHYSICAL REVIEW C 90.5(2014):54613.
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