Effects of Nuclear Structure on Quasi-fission

Abstract

The quasi-fission mechanism hinders fusion of heavy systems because of a mass flow between the reactants, leading to a re-separation of more symmetric fragments in the exit channel. A good understanding of the competition between fusion and quasi-fission mechanisms is expected to be of great help to optimize the formation and study of heavy and superheavy nuclei. Quantum microscopic models, such as the time-dependent Hartree-Fock approach, allow for a treatment of all degrees of freedom associated to the dynamics of each nucleon. This provides a description of the complex reaction mechanisms, such as quasi-fission, with no parameter adjusted on reaction mechanisms. In particular, the role of the deformation and orientation of a heavy target, as well as the entrance channel magicity and isospin are investigated with theoretical and experimental approaches.

Invited talk to NSRT12. To be published in Eur. Phys. J. Web of Conf

References in corpus (6)

• Particle transfer reactions with the time-dependent Hartree-Fock theory using a particle number projection technique
• Particle number fluctuations and correlations in transfer reactions obtained using the Balian-Vénéroni variational principle
• Collision dynamics of two ${}^{238}$U atomic nuclei
• A new inverse quasifission mechanism to produce neutron-rich transfermium nuclei
• Angular anisotropy of the fusion-fission and quasifission fragments
• Fusion hindrance and roles of shell effects in superheavy mass region

Cited by in corpus (5)

• Time-dependent Hartree-Fock calculations for multinucleon transfer processes in ${}^{40,48}$Ca+${}^{124}$Sn, ${}^{40}$Ca+${}^{208}$Pb, and ${}^{58}$Ni+${}^{208}$Pb reactions
• Low-Energy Heavy-Ion Reactions and the Skyrme Effective Interaction
• Time-dependent HF approach to SHE dynamics
• Two-body dissipation effects on synthesis of superheavy elements
• Improvements to the macroscopic-microscopic approach of nuclear fission