The fission barriers in Actinides and superheavy nuclei in covariant density functional theory

Details The fission barriers in Actinides and superheavy nuclei in covariant density functional theory The fission barriers in Actinides and superheavy nuclei in covariant density functional theory

2009-09-07

arxiv.org/abs/0909.1233v1

Phys.Lett.B689:72-81,2010

Physics

Nuclear Physics

Nuclear Theory

9 pages, 8 figures

Scientific paper

10.1016/j.physletb.2010.04.045

The impact of pairing correlations on the fission barriers is investigated in Relativistic Hartree Bogoliubov (RHB) theory and Relativistic Mean Field (RMF)+BCS calculations. It is concluded that the constant gap approximation in the usual RMF+BCS calculations does not provide an adequate description of the barriers. The RHB calculations show that there is a substantial difference in the predicted barrier heights between zero-range and finite range pairing forces even in the case when the pairing strengths of these two forces are adjusted to the same value of the pairing gap at the ground state.

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