Abstract

Three-dimensional time-dependent Hartree-Fock calculations for the $^{16}\mathrm{O}$ + $^{16}\mathrm{O}$ and $^{40}\mathrm{Ca}$ + $^{40}\mathrm{Ca}$ fusion excitation functions are presented. Results for the former system are in good agreement with experiment for ${E}_{\mathrm{lab}}\ensuremath{\le}120$ MeV and indicate a dynamical lower angular momentum limit to fusion for ${E}_{\mathrm{lab}}\ensuremath{\ge}54$ MeV. Results for $^{40}\mathrm{Ca}$ + $^{40}\mathrm{Ca}$ are compared with previous two-dimensional calculations. The low-energy fusion cross sections obtained for this system demonstrate the sensitivity of time-dependent Hartree-Fock calculations to the effective interaction used.

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