Fission Barriers of Superheavy Nuclei in the Skyrme-Hartree-Fock Model

ANDRZEJ STASZCZAK, JACEK DOBACZEWSKI,

and WITOLD NAZAREWICZ

Abstract:

Constrained Skyrme-Hartree-Fock calculations of static fission barriers are performed for even-even elements with $Z=100\div110$ as well as for superheavy $N$=184 isotones. In our study we use the Skyrme parametrization SLy4 and a seniority pairing force treated in the BCS approximation. The computations are carried out applying a code that makes it possible to break all self-consistent symmetries of the nuclear mean field, including axial symmetry and reflection symmetry. The influence of reflection-asymmetric and triaxial degrees of freedom on fission barriers are discussed.