类氦$^{11}$B$^{3+}$中$1s2s\,^3\!S_1\ ightarrow 1s2p\,^3\!P_{0,2}$跃迁的共线激光光谱
Collinear Laser Spectroscopy of the $1s2s\,^3\!S_1\rightarrow 1s2p\,^3\!P_{0,2}$ Transitions in Helium-like $^{11}$B$^{3+}$
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中文总结 AI 辅助
本文通过共线激光光谱测量了类氦$^{11}$B$^{3+}$离子的超精细结构,确认并改进了先前结果,实验与理论在精细结构能级上合理一致。
中文摘要 AI 辅助
我们报道了在$^{11}$B$^{3+}$离子光谱中$1s2s\,{}^{3\!}S_1 \ ightarrow 1s2p\,{}^{3\!}P_{0,2}$精细结构跃迁的超精细结构测量。类氦离子在电子束离子阱(EBIT)中产生,并在短暂的15毫秒产生周期后射出。实验的一个挑战是处理所产生的离子束团的复杂能量-时间分布,以及共线激光光谱对EBIT内部起始电位的敏感性。尽管存在这些复杂性和实验的低统计量,我们仍能够确认并改进先前对这些跃迁的测量结果。虽然我们在$^{3\!}P_{0,2}$能级的超精细参数结果中发现了中等程度的张力,但它们的精细结构能级在实验之间以及与理论之间均具有合理的一致性。
英文摘要
We report on hyperfine structure measurements of the $1s2s\,{}^{3\!}S_1 \rightarrow 1s2p\,{}^{3\!}P_{0,2}$ fine-structure transitions in the spectrum of $^{11}$B$^{3+}$ ions. The helium-like ions were created in an electron beam ion trap (EBIT) and ejected after a short production period of 15 ms. A challenge of the experiment was the treatment of the complex energy-time-profile of the created ion bunches and the sensitivity of the collinear laser spectroscopy to the starting potential inside the EBIT. Despite these complications and the low statistics of the experiment, we were able to confirm and improve the results of a previous measurement of these transitions. While we find moderate tension in the results for the hyperfine parameters of the $^{3\!}P_{0,2}$ levels, their fine-structure level energies are in reasonable agreement between experiments and with theory.
发表机构
- Institut für Kernphysik, Universität Münster(明斯特大学核物理研究所)
- Institut für Kernphysik, Technische Universität Darmstadt(达姆施塔特工业大学核物理研究所)
- Helmholtz Research Academy Hesse for FAIR, GSI Helmholtzzentrum für Schwerionenforschung GmbH(黑森州FAIR亥姆霍兹研究院,GSI重离子研究中心有限公司)
- GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI重离子研究中心有限公司)
- Argonne National Laboratory(阿贡国家实验室)
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