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arXiv 2607.25033nucl-ex

(N=82)壳层闭附近铥同位素的激光光谱:${}^{152\mathrm{m}}\mathrm{Tm}$的核磁矩和电荷半径

Laser Spectroscopy of Thulium Isotopes Near the $N=82$ Shell Closure: Nuclear Moment and Charge Radius of ${}^{152\mathrm{m}}\mathrm{Tm}$

Jana Weyrich, Kenneth van Beek, Harshithbabu, Aayush Arya, Sebastian Berndt, Michael Block, Alexandre Brizard, Premaditya Chhetri, Arno Claessens, Christoph Ema… 展开作者

Jana Weyrich, Kenneth van Beek, Harshithbabu, Aayush Arya, Sebastian Berndt, Michael Block, Alexandre Brizard, Premaditya Chhetri, Arno Claessens, Christoph Emanuel Düllmann, Rafael Ferrer, Sarina Geldhof, Francesca Giacoppo, Manuel J. Gutierrez, Raphael Hasse, Christian Helmel, Fritz Peter Heßberger, Julian Hindermann, Fedor Ivandikov, Biswajit Jana, Tom Kieck, Mustapha Laatiaoui, Nathalie Lecesne, Andrew Mistry, Danny Münzberg, Thorben Niemeyer, Sebastian Raeder, Elisabeth Rickert, Daniel Rodriguez, Herve Savajols, Matou Stemmler, Dominik Studer, Thomas Walther, Jessica Warbinek, Piet Van Duppen, Klaus Wendt

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中文总结 AI 辅助

对铥同位素进行共振电离激光光谱测量,测定特定波长跃迁的同位素位移,部分分辨超精细结构,确定${}^{152\mathrm{m}}\mathrm{Tm}$的核磁偶极矩,提取其均方核电荷半径变化。

中文摘要 AI 辅助

我们报告了对缺中子和富中子铥($\mathrm{Tm}, Z=69$)同位素进行的共振电离激光光谱测量。测定了${}^{152\mathrm{m}}\mathrm{Tm}$、${}^{153}\mathrm{Tm}$、${}^{154\mathrm{m}}\mathrm{Tm}$和${}^{169}\mathrm{Tm}$同位素在波长389.8nm、388.4nm和388.8nm处三个原子基态跃迁的同位素位移。此外,对于389.8nm跃迁,测量扩展到${}^{170}\mathrm{Tm}$同位素,并部分分辨了所有五种同位素的超精细结构。从提取的超精细耦合常数确定了${}^{152\mathrm{m}}\mathrm{Tm}$的核磁偶极矩$\mu\left({}^{152\mathrm{m}}\mathrm{Tm}\right) = 5.8(3)\,\mu_\mathrm{N}$。此外,测量的同位素位移使得能够提取${}^{152\mathrm{m}}\mathrm{Tm}$的均方核电荷半径变化$\delta\langle r^2\rangle^{152\mathrm{m},169} = -1.86(25)\,\mathrm{fm}^2$。

英文摘要

We report on resonance ionization laser spectroscopy measurements performed on both neutron-deficient and neutron-rich thulium ($\mathrm{Tm}, Z=69$) isotopes. Isotope shifts were determined for three atomic ground-state transitions at wavelengths of $389.8\,\mathrm{nm}$, $388.4\,\mathrm{nm}$, and $388.8\,\mathrm{nm}$ in the isotopes ${}^{152\mathrm{m}}\mathrm{Tm}$, ${}^{153}\mathrm{Tm}$, ${}^{154\mathrm{m}}\mathrm{Tm}$, and ${}^{169}\mathrm{Tm}$. In addition, for the $389.8\,\mathrm{nm}$ transition, measurements were extended to the isotope ${}^{170}\mathrm{Tm}$, and the hyperfine structure was partially resolved for all five isotopes. For this transition, the isotope shift could be determined for one more isotope, ${}^{154\mathrm{m}}\mathrm{Tm}$. From the extracted hyperfine coupling constants, the nuclear magnetic dipole moment for ${}^{152\mathrm{m}}\mathrm{Tm}$ was determined for the first time, resulting in $μ\left({}^{152\mathrm{m}}\mathrm{Tm}\right) = 5.8(3) μ_\mathrm{N}$. Furthermore, the mean-square nuclear charge radius $δ\langle r^2\rangle^{152\mathrm{m},169} = -1.87(17)\,\mathrm{fm}^2$ for ${}^{152\mathrm{m}}\mathrm{Tm}$ was extracted from the measured isotope shifts.

发表机构

  • GSI Helmholtzzentrum für Schwerionenforschung GmbH(GSI亥姆霍兹重离子研究中心有限公司)
  • Helmholtz-Institut Mainz(美因茨亥姆霍兹研究所)
  • Johannes Gutenberg-Universität Mainz(约翰内斯·古腾堡大学美因茨分校)
  • Technische Universität Darmstadt(达姆施塔特工业大学)
  • KU Leuven(鲁汶大学)
  • Grand Accelerateur National d’Ions Lourds(法国国家大型重离子加速器研究所)

机构由 AI 辅助整理,请以论文原文为准。

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