English

Candidates for three-quasiparticle $K$-isomers in odd-even Md-Rg nuclei

Nuclear Theory 2023-10-18 v3

Abstract

We performed a search for three-quasiparticle high-KK isomer candidates in odd-even Md - Rg nuclei by considering the lowest lying 1π\pi2ν\nu and 3π\pi excitations. Our approach involves calculating the energies of different nuclear configurations using a microscopic-macroscopic model with the Woods-Saxon potential. We explore three pairing scenarios: blocking, quasi-particle BCS method, and particle number projection formalism. The optimal deformations for both ground-states and high-KK configurations are determined through a four-dimensional energy minimization process. By analyzing the obtained excitation energies, we discuss the most promising candidates for high-KK isomers and compare them, where possible, with existing experimental data. We also discuss a possible isomer α\alpha-decay hindrance using calculated QαQ_{\alpha}-hindrances.

Keywords

Cite

@article{arxiv.2308.02893,
  title  = {Candidates for three-quasiparticle $K$-isomers in odd-even Md-Rg nuclei},
  author = {P. Jachimowicz and M. Kowal and J. Skalski},
  journal= {arXiv preprint arXiv:2308.02893},
  year   = {2023}
}

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