Fission Fragment Properties at Scission with the Gogny Force
Abstract
Two-dimensional Hartree-Fock-Bogoliubov (HFB) calculations have been performed from spherical shapes to large deformations with constraints on axial quadrupole and octupole deformations in 238U, 256-260Fm and 226Th actinides. Scission configurations have then been identified in this subspace of collective coordinates and many nuclear properties of the nascent fragments have been derived, such as deformation, deformation energy or prompt neutron multiplicity. The HFB states have then served as basis states for time-dependent collective calculations based on the Time-Dependent Generator Coordinate Method and the Gaussian Overlap Approximation to derive fission fragment yields.
- Publication:
-
International Journal of Modern Physics E
- Pub Date:
- 2008
- DOI:
- 10.1142/S0218301308009562
- Bibcode:
- 2008IJMPE..17...72D