Shell-model study for allowed and forbidden $β^-$ decay properties in the mass region "south" of $^{208}$Pb
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866917772015960064 |
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| author | Sharma, Shweta Srivastava, Praveen C. Kumar, Anil Suzuki, Toshio Yuan, Cenxi Shimizu, Noritaka |
| author_facet | Sharma, Shweta Srivastava, Praveen C. Kumar, Anil Suzuki, Toshio Yuan, Cenxi Shimizu, Noritaka |
| contents | The large-scale shell-model calculations have been performed for the neutron-rich nuclei in the south region of $^{208}$Pb in the nuclear chart. The $β$-decay properties, such as the $\log ft$, average shape factor values, half-lives, and partial decay rates are calculated for these neutron-rich nuclei using recent effective interaction for the $^{208}$Pb region. These calculations have been performed without truncation in a particular model space for nuclei $N\leq 126$; additionally, particle-hole excitations are included in the case of core-breaking nuclei ($Z\leq 82, N>126$). An extensive comparison with the experimental data has been made, and spin parities of several states have been proposed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_07903 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Shell-model study for allowed and forbidden $β^-$ decay properties in the mass region "south" of $^{208}$Pb Sharma, Shweta Srivastava, Praveen C. Kumar, Anil Suzuki, Toshio Yuan, Cenxi Shimizu, Noritaka Nuclear Theory Nuclear Experiment The large-scale shell-model calculations have been performed for the neutron-rich nuclei in the south region of $^{208}$Pb in the nuclear chart. The $β$-decay properties, such as the $\log ft$, average shape factor values, half-lives, and partial decay rates are calculated for these neutron-rich nuclei using recent effective interaction for the $^{208}$Pb region. These calculations have been performed without truncation in a particular model space for nuclei $N\leq 126$; additionally, particle-hole excitations are included in the case of core-breaking nuclei ($Z\leq 82, N>126$). An extensive comparison with the experimental data has been made, and spin parities of several states have been proposed. |
| title | Shell-model study for allowed and forbidden $β^-$ decay properties in the mass region "south" of $^{208}$Pb |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2309.07903 |