Candidates for three-quasiparticle $K$-isomers in even-odd Fm-Cn nuclei
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| Format: | Preprint |
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2025
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| _version_ | 1866908492656279552 |
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| author | Jachimowicz, P. Kowal, M. Skalski, J. |
| author_facet | Jachimowicz, P. Kowal, M. Skalski, J. |
| contents | Following our study of possible $K$-isomers in odd-even Md-Rg nuclei, here we continue with searching for three-quasiparticle 1$ν$2$π$ and 3$ν$ isomer candidates in even-odd Fm - Cn nuclei. We use the same approach to calculate energies of different nuclear configurations using a microscopic-macroscopic model with the Woods-Saxon potential. We used two versions of pairing: quasi-particle BCS method and particle number projection formalism. The optimal deformations for both ground states and high-$K$ configurations are determined through a four-dimensional energy minimization process. We point out the most promising candidates for high-$K$ isomers and compare them, where possible, with existing experimental data. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2508_12236 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Candidates for three-quasiparticle $K$-isomers in even-odd Fm-Cn nuclei Jachimowicz, P. Kowal, M. Skalski, J. Nuclear Theory Following our study of possible $K$-isomers in odd-even Md-Rg nuclei, here we continue with searching for three-quasiparticle 1$ν$2$π$ and 3$ν$ isomer candidates in even-odd Fm - Cn nuclei. We use the same approach to calculate energies of different nuclear configurations using a microscopic-macroscopic model with the Woods-Saxon potential. We used two versions of pairing: quasi-particle BCS method and particle number projection formalism. The optimal deformations for both ground states and high-$K$ configurations are determined through a four-dimensional energy minimization process. We point out the most promising candidates for high-$K$ isomers and compare them, where possible, with existing experimental data. |
| title | Candidates for three-quasiparticle $K$-isomers in even-odd Fm-Cn nuclei |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2508.12236 |