arXiv subjects

K. Sieja

Publications and source records attributed to K. Sieja.

20 records · Page 2Linked to original sources

arXiv2006

Pairing and alpha-decay

Nuclear pairing interaction plays a crucial role in both macroscopic-microscopic and fully macroscopic descriptions of nuclei. In the present study we discuss different pairing interactions (monopole and delta pairing forces) and the methods allowing for the particle number symmetry restoration in addition to the customary BCS treatment of pairing correlations in the context of $α$-decay half-lives for superheavy nuclei. The calculations are done in the macroscopic-microscopic framework for even-even nuclei with Z > 110.

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arXiv2003

State dependent $δ$-pairing and spontaneous fission

We examine the fission barriers, mass parameters and spontaneous fission half lives of fermium isotopes within the framework of macroscopic-microscopic model with a $δ$-pairing interaction. Four different macroscopic models are applied and studied. The results are compared to experimental data and to the corresponding monopole pairing ones. The half lives obtained in the $δ$-pairing model are comparable with experimental data. The state-dependence of pairing has an important effect on the calculated fission half-lives.

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