Nuclear shapes in 176W with density dependent forces: from ground state to fission

A code appropriate for Hartree-Fock-Bogoliubov calculations in a very large harmonic oscillator basis space has been developed. With a large enough basis, it becomes possible to handle fission in a one-center basis. The code is sufficiently flexible to deal with axially symmetric shapes, including those that are reflection asymmetric. As an application, we have studied the energy surface of the nucleus 176W for very extended shapes where large reflection asymmetry effects are predicted. The finite range density dependent Gogny force has been used in the calculations.