Fission of heavy hypernuclei with the Skyrme-Hartree-Fock approach

Minato, Futoshi   ; Hagino, Koichi*; Chiba, Satoshi

It has been shown that the shape of a few deformed nuclei change toward spherical when a particle is added to them. This is caused because the interaction between a particle and a nucleon is attractive. This fact has motivated us to investigate the influence of particle on the fission of heavy nuclei. We will discuss the fission-related phenomena of heavy hypernuclei with the constraint Skyrme-Hartree-Fock+BCS (SHF+BCS) method. We employ a Skyrme-type interaction for the interaction and assume adiabaticity, that is, the particle is assumed to be in the lowest state at all deformations. Our result confirms that the particle is stuck to the heavier fission fragment, which is consistent with the experimental result of CERN. We will also discuss the deformation of heavy hypernuclei and the particle motion inside the core nuclei.