论文标题

$^{40} $ sc的基态磁偶极矩

Ground State Magnetic Dipole Moment of $^{40}$Sc

论文作者

Powel, Robert, Brown, B. Alex, Holt, Jason D., Klose, Andrew, König, Kristian, Lantis, Jeremy, Minamisono, Kei, Miyagi, Takayuki, Pineda, Skyy

论文摘要

从$ 3D4S \,^3 \ 3 \ text {d} _2 $ \,$ \ leftrightRightArrow $ 3d4p \ sciment $ 3d4p \ scrime text^3 d \ sc^3 \ sciment,$ 3d4p \ sciment^3 d \ scriment,^3 \ scriment,^3 \ scipt^3 \ scriment,$ 3d4p \ sciment,$ 3D4p \ sciment,$ 3D4P \}束束线激光光谱技术。基态磁偶极和电二极管矩首次确定为$μ$ \,= \,$+5.57(4)(2)\,μ_n$和$ q $ \,= \,= \,$+42(38)(28)(28)(28)(28)\,e^2 \;磁矩是通过添加性规则很好地再现的,在偶然杂乱的$^{40} $ ca核的附近,相邻奇数核的磁矩。还采用了Ab-Initio Multishell Valence-Space Hamiltonian来计算$^{40} $ SC的磁矩,该磁矩跨越了$ SD $和$ fp $核壳,我们获得了良好的协议。

The hyperfine coupling constants of the proton dripline odd-odd $^{40}$Sc nucleus were deduced from the hyperfine spectrum of the $3d4s\,^3\text{D}_2$\,$\leftrightarrow$\,$3d4p\,^3\text{F}^\circ_3$ transition in Sc II, measured by the bunched beam collinear laser spectroscopy technique. The ground state magnetic dipole and electric quadrupole moments were determined for the first time as $μ$\,=\,$+5.57(4)(2)\,μ_N$ and $Q$\,=\,$+42(38)(28)\,e^2\;{\rm fm^2}$, respectively. The magnetic moment is well reproduced by the additivity rule with magnetic moments of neighboring odd-even nuclei in the vicinity of the doubly-magic $^{40}$Ca nucleus. An ab-initio multishell valence-space Hamiltonian was also employed to calculate the magnetic moment of $^{40}$Sc, which spans across the $sd$ and $fp$ nuclear shells, where we obtained good agreements.

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