Sub-barrier capture with quantum diffusion approach: actinide-based reactions

Abstract

With the quantum diffusion approach the behavior of capture cross sections and mean-square angular momenta of captured systems are revealed in the reactions with deformed nuclei at subbarrier energies. The calculated results are in a good agreement with existing experimental data. With decreasing bombarding energy under the barrier the external turning point of the nucleusnucleus potential leaves the region of short-range nuclear interaction and action of friction. Because of this change of the regime of interaction, an unexpected enhancement of the capture cross section is expected at bombarding energies far below the Coulomb barrier. This effect is shown its worth in the dependence of mean-square angular momentum of captured system on the bombarding energy. From the comparison of calculated and experimental capture cross sections, the importance of quasifission near the entrance channel is shown for the actinide-based reactions leading to superheavy nuclei.

11 pages, 16 figures, Regular Article

References in corpus (7)

• Signature of Shallow Potentials in Deep Sub-barrier Fusion Reactions
• Hindrance of ^{16}O+^{208}Pb fusion at extreme sub-barrier energies
• One-body energy dissipation in fusion reaction from mean-field theory
• Peculiarities of sub-barrier fusion with quantum diffusion approach
• Applications of Skyrme energy-density functional to fusion reactions for synthesis of superheavy nuclei
• Indications of a shallow potential in ${}^{48}$Ca+${}^{96}$Zr fusion reactions
• Fusion at deep subbarrier energies: potential inversion revisited

Cited by in corpus (9)

• Effects of nuclear deformation and neutron transfer in capture process, and origin of fusion hindrance at deep sub-barrier energies
• Neutron pair transfer in sub-barrier capture process
• Search of systematic behavior of breakup probability in reactions with weakly bound projectiles at energies around Coulomb barrier
• Sub-barrier capture reactions with ${}^{16,18}$O and ${}^{40,48}$Ca beams
• Threshold energy for sub-barrier fusion hindrance phenomenon
• Extended quantum diffusion approach to reactions of astrophysical interests
• Production of exotic isotopes in complete fusion reactions with radioactive beams
• Quasifission at extreme sub-barrier energies
• Fusion at near-barrier energies within quantum diffusion approach