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.

Comments: 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)