Collinear laser spectroscopy on neutron-rich actinium isotopes
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arXiv
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| Autori principali: | , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915202985885696 |
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| author | Li, Ruohong Teigelhöfer, Andrea Li, Jiguang Bieroń, Jacek Gácsbaranyi, András Johnson, Jake Jönsson, Per Karner, Victoria Ma, Mingxuan Radulov, Martin Roman, Mathias Stachura, Monika Lassen, Jens |
| author_facet | Li, Ruohong Teigelhöfer, Andrea Li, Jiguang Bieroń, Jacek Gácsbaranyi, András Johnson, Jake Jönsson, Per Karner, Victoria Ma, Mingxuan Radulov, Martin Roman, Mathias Stachura, Monika Lassen, Jens |
| contents | High-resolution collinear laser spectroscopy of neutron-rich actinium has been performed at TRIUMF's isotope separator and accelerator facility ISAC. By probing the $7s^2~^1S_0$ $\rightarrow$ $6d7p~^1P_1$ ionic transition, the hyperfine structures and optical isotope shifts in $^{225, 226, 228, 229}\!$Ac$^+$ have been measured. This allows precise determinations of the changes in mean-square charge radii, magnetic dipole moments, and electric quadrupole moments of these actinium isotopes. The improved precision of charge radii and magnetic moments clears the ambiguity in the odd-even staggering from previous studies. The electric quadrupole moments of $^{225, 226, 228, 229}\!$Ac are determined for the first time. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_13732 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Collinear laser spectroscopy on neutron-rich actinium isotopes Li, Ruohong Teigelhöfer, Andrea Li, Jiguang Bieroń, Jacek Gácsbaranyi, András Johnson, Jake Jönsson, Per Karner, Victoria Ma, Mingxuan Radulov, Martin Roman, Mathias Stachura, Monika Lassen, Jens Nuclear Experiment Atomic Physics High-resolution collinear laser spectroscopy of neutron-rich actinium has been performed at TRIUMF's isotope separator and accelerator facility ISAC. By probing the $7s^2~^1S_0$ $\rightarrow$ $6d7p~^1P_1$ ionic transition, the hyperfine structures and optical isotope shifts in $^{225, 226, 228, 229}\!$Ac$^+$ have been measured. This allows precise determinations of the changes in mean-square charge radii, magnetic dipole moments, and electric quadrupole moments of these actinium isotopes. The improved precision of charge radii and magnetic moments clears the ambiguity in the odd-even staggering from previous studies. The electric quadrupole moments of $^{225, 226, 228, 229}\!$Ac are determined for the first time. |
| title | Collinear laser spectroscopy on neutron-rich actinium isotopes |
| topic | Nuclear Experiment Atomic Physics |
| url | https://arxiv.org/abs/2503.13732 |