Microscopic DC-TDHF study of heavy-ion potentials and fusion cross sections

Abstract

We study heavy-ion fusion reactions at energies near the Coulomb barrier, in particular with neutron-rich radioactive ion beams. Dynamic microscopic calculations are carried out on a three-dimensional lattice using the Density-Constrained Time-Dependent Hartree-Fock (DC-TDHF) method. New results are presented for the ${}^{132}$Sn+${}^{40}$Ca system which are compared to ${}^{132}$Sn+${}^{48}$Ca studied earlier. Our theoretical fusion cross-sections agree surprisingly well with recent data measured at HRIBF. We also study the near- and sub-barrier fusion of ${}^{24,16}$O on ${}^{12}$C which is important to determine the composition and heating of the crust of accreting neutron stars.

Talk given by . Volker E. Oberacker at the 11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas, USA, May 27-June 1, 2012. To appear in the NN2012 Proceedings in Journal of Physics: Conference Series (JPCS)

References in corpus (14)

• Energy dependence of nucleus-nucleus potential close to the Coulomb barrier
• 3-D unrestricted TDHF fusion calculations using the full Skyrme interaction
• Heavy-ion interaction potential deduced from density-constrained TDHF calculation
• Particle number fluctuations and correlations in transfer reactions obtained using the Balian-Vénéroni variational principle
• A new inverse quasifission mechanism to produce neutron-rich transfermium nuclei
• Microscopic sub-barrier fusion calculations for the neutron star crust
• Microscopic study of Ca$+$Ca fusion
• Existence of One-Body Barrier Revealed in Deep Sub-Barrier Fusion
• Density-constrained time-dependent Hartree-Fock calculation of ${}^{16}$O+${}^{208}$Pb fusion cross sections
• Conservation Properties in the Time-Dependent Hartree Fock Theory
• Study of ${}^{64}$Ni+${}^{132}$Sn Fusion with Density Constrained TDHF Formalism
• Hindrance in the fusion of ${}^{48}$Ca+${}^{48}$Ca
• Dynamic microscopic study of pre-equilibrium giant resonance excitation and fusion in the reactions ${}^{132}$Sn+${}^{48}$Ca and ${}^{124}$Sn+${}^{40}$Ca
• Potential inversion with subbarrier fusion data revisited