2007/11/23 by Zhao-Qing Feng, Gen-Ming Jin, Feng-Shou Zhang · 1 citation
Chemistry · Physics and Astronomy · #Astronomical and nuclear sciences #Atomic and Molecular Physics #Atomic physics #Chemical physics #Chemistry #Coulomb #Coulomb barrier #Electron #Excitation #Fusion #Heavy ion #Ion #Materials science #Nuclear fusion #Nuclear physics #Nuclear physics research studies #Nuclear reaction #Physics #Quantum mechanics #Shell (structure) #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2008.01.022
published as Nucl.Phys.A802:91-106,2008 · 20 pages, 12 figures
arxiv created 2007/11/23 · openalex publication_date 2008/02/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The shell correction is proposed in the improved isospin dependent quantum molecular dynamics (ImIQMD) model, which plays an important role in heavy-ion fusion reactions near Coulomb barrier. By using the ImIQMD model, the static and dynamical fusion barriers, dynamical barrier distribution in the fusion reactions are analyzed systematically. The fusion and capture excitation functions for a series of reaction systems are calculated and compared with experimental data. It is found that the fusion cross sections for neutron-rich systems increase obviously, and the strong shell effects of two colliding nuclei result in a decrease of the fusion cross sections at the sub-barrier energies. The lowering of the dynamical fusion barriers favors the enhancement of the sub-barrier fusion cross sections, which is related to the nucleon transfer and the neck formation in the fusion reactions.