Odd-even shape staggering and kink structure of charge radii of Hg isotopes by the deformed relativistic Hartree-Bogoliubov theory in continuum
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866911818631348224 |
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| author | Mun, Myeong-Hwan Kim, Seonghyun So, W. Y. Choi, Soonchul Ha, Eunja Cheoun, Myung-Ki |
| author_facet | Mun, Myeong-Hwan Kim, Seonghyun So, W. Y. Choi, Soonchul Ha, Eunja Cheoun, Myung-Ki |
| contents | We examined the shape staggering of relative charge radii in $^{180 - 186}$Hg isotopes, which was first measured in 1977 and recently confirmed using advanced spectroscopy techniques. To understand the nuclear structure underlying this phenomenon, we employed the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc). Our analysis revealed that the shape staggering can be attributed to nuclear shape transition in the Hg isotopes. Specifically, we demonstrated that prolate shapes of $^{181,183,185}$Hg lead to an increase in the charge radii compared to oblate shapes of $^{180,182,184,186}$Hg isotopes. We explained the nuclear shape staggering in terms of the evolution of occupation probability (OP) of $ν1 i_{13/2}$, $ν1 h_{9/2}$, $π1 h_{9/2}$, and $π3 s_{1/2}$ states. Additionally, we clarified the kink structure of the charge radii in the Hg isotopes near $N = 126$ magic shell does not come from the change of the OP of $π1 h_{9/2}$ state, but mainly by the increase of the OPs of $ν1 i_{11/2}$ and $ν2 g_{9/2}$ states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2305_09205 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Odd-even shape staggering and kink structure of charge radii of Hg isotopes by the deformed relativistic Hartree-Bogoliubov theory in continuum Mun, Myeong-Hwan Kim, Seonghyun So, W. Y. Choi, Soonchul Ha, Eunja Cheoun, Myung-Ki Nuclear Theory We examined the shape staggering of relative charge radii in $^{180 - 186}$Hg isotopes, which was first measured in 1977 and recently confirmed using advanced spectroscopy techniques. To understand the nuclear structure underlying this phenomenon, we employed the deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc). Our analysis revealed that the shape staggering can be attributed to nuclear shape transition in the Hg isotopes. Specifically, we demonstrated that prolate shapes of $^{181,183,185}$Hg lead to an increase in the charge radii compared to oblate shapes of $^{180,182,184,186}$Hg isotopes. We explained the nuclear shape staggering in terms of the evolution of occupation probability (OP) of $ν1 i_{13/2}$, $ν1 h_{9/2}$, $π1 h_{9/2}$, and $π3 s_{1/2}$ states. Additionally, we clarified the kink structure of the charge radii in the Hg isotopes near $N = 126$ magic shell does not come from the change of the OP of $π1 h_{9/2}$ state, but mainly by the increase of the OPs of $ν1 i_{11/2}$ and $ν2 g_{9/2}$ states. |
| title | Odd-even shape staggering and kink structure of charge radii of Hg isotopes by the deformed relativistic Hartree-Bogoliubov theory in continuum |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2305.09205 |