Dynamic potential barrier in the entrance phase of heavy-ion fusion reactions

被引：9
|
作者：
Tian, J. -L. [1 ,2 ]
Li, X. [1 ]
Wu, X. -Z. [2 ]
Li, Z. -X. [2 ]
Yan, S. -W. [1 ]
机构：
[1] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China
[2] China Inst Atom Energy, Beijing 102413, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL A | 2009年 / 42卷 / 01期
基金：
中国国家自然科学基金;
关键词：
COMPOUND NUCLEUS FORMATION; SUPERHEAVY ELEMENTS; MASSIVE NUCLEI; QUASI-FISSION; SHELL-MODEL; COMPETITION;
D O I：
10.1140/epja/i2009-10850-2
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Based on the improved quantum molecular-dynamics (ImQMD) model, the incident energy dependence of dynamic potential barriers is investigated in the entrance channel of fusion reactions. The height of the dynamic barrier increases with the incident energy at energies around the Coulomb barrier. The calculated lowest dynamic barrier approaches to the adiabatic barrier, while the highest one goes up to the sudden potential barrier. To understand the energy dependence of the dynamical barrier we study the neck formation and shape evolution of the system which causes the dynamic lowering of the barrier.
引用
收藏
页码：105 / 110
页数：6
相关论文
共 44 条
  • [21] A new dynamical mechanism of incomplete fusion in heavy-ion collisions
    Nasirov, A. K.
    Kayumov, B. M.
    Ganiev, O. K.
    Yuldasheva, G. A.
    PHYSICS LETTERS B, 2023, 842
  • [22] Theoretical study of effects of the entrance channel on the relative yield of complete fusion and quasifission in heavy-ion collisions within a dinuclear system approach
    Soheyli, S.
    Khanlari, M. Varasteh
    PHYSICAL REVIEW C, 2016, 94 (03)
  • [23] Compound nucleus formation effects in heavy-ion fusion cross sections
    Zagatto, V. A. B.
    Aguiar, C. E.
    Lubian, J.
    Canto, L. F.
    PHYSICAL REVIEW C, 2025, 111 (02)
  • [24] Theoretical study of the synthesis of superheavy nuclei with Z=119 and 120 in heavy-ion reactions with trans-uranium targets
    Wang, Nan
    Zhao, En-Guang
    Scheid, Werner
    Zhou, Shan-Gui
    PHYSICAL REVIEW C, 2012, 85 (04):
  • [25] Non-equilibrium processes in Heavy-ion induced Fission Reactions
    Choudhury, R. K.
    Thomas, R. G.
    INTERNATIONAL SYMPOSIUM ON QUASIFISSION PROCESS IN HEAVY ION REACTIONS, 2011, 282
  • [26] Impact of nuclear structure of correlated pairs of fission fragments in mass distribution spectra of heavy-ion fusion–fission reactions
    Sham S Malik
    Rajeev K Puri
    Pramana, 98
  • [27] DISCOVERIES WITH COLD HEAVY-ION FUSION AND SHELL STABILISED NUCLEI AROUND HASSIUM
    Muenzenberg, G.
    Gupta, M.
    ROMANIAN JOURNAL OF PHYSICS, 2012, 57 (1-2): : 399 - 406
  • [28] Decay Times of Compound Nuclei in Heavy Ion Fusion Reactions
    Manjunatha, Narayanaswamy
    Manjunatha, Holaly Chandrashekara Shastry
    Sowmya, Nagaraj
    Sridhar, Krishnachari Nagarathnamma
    Ganesh, Thiyagarajan
    Gupta, Pachipulusu Seetharamaiah Setty Damodara
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2023, 92 (02)
  • [29] Impact of nuclear structure of correlated pairs of fission fragments in mass distribution spectra of heavy-ion fusion-fission reactions
    Malik, Sham S.
    Puri, Rajeev K.
    PRAMANA-JOURNAL OF PHYSICS, 2024, 98 (01):
  • [30] Microscopic study of deformation and orientation effects in heavy-ion reactions above the Coulomb barrier using the Boltzmann-Uehling-Uhlenbeck model
    Feng, Yujie
    Liu, Huizi
    Huang, Yingge
    Gu, Fuchang
    Xiao, Erxi
    Lei, Xin
    Wang, Hui
    Huang, Jiali
    Zhu, Long
    Su, Jun
    PHYSICAL REVIEW C, 2024, 109 (05)
12345