论文标题
$^{6,7} $ li $^+$ ions的超细结构的精确计算和Zemach Radii
Precision calculation of hyperfine structure and the Zemach radii of $^{6,7}$Li$^+$ ions
论文作者
论文摘要
$ 2 \，^3 \！s_1 $状态的超精细结构是从理论上研究$^6 $ li $^+$和$^7 $ li $^+$ ions的状态，以通过比较精确的测量来提取$^6 $ li的Zemach Radii和$^6 $ li的Zemach Radii。获得的Zemach Radii大于Puchalski和Pachucki [\ Href {https://link.aps.org/doi/10.1103/physrevlett.111.11.243001} {phys。莱特牧师。 {\ bf 111}，243001（2013）}]，分别分别以$^6 $ li和$^7 $ li的约1.5和2.2标准偏差。此外，我们$^6 $ li的Zemach半径与核物理价值明显不同，核电值和磁性半径[\ href {https://link.aps.org/doi/10.1103/phys.1103/physreva.78.012513}修订版A {\ bf 78}，012513（2008）}]，由6个以上的Sigma表示，指示$^6 $ li的异常核结构。确认的结论是，$^7 $ li的Zemach半径大约比$^6 $ li的结论大约40 \％。获得的Zemach Radii用于计算$ 2 \，^3 \！p_j $状态$^{6,7} $ li $^+$状态的超精细分组，其中已经以$^7 $ li $^+$来实现了先前理论的数量级改进。
The hyperfine structures of the $2\,^3\!S_1$ states of the $^6$Li$^+$ and $^7$Li$^+$ ions are investigated theoretically to extract the Zemach radii of the $^6$Li and $^7$Li nuclei by comparing with precision measurements. The obtained Zemach radii are larger than the previous values of Puchalski and Pachucki [\href{https://link.aps.org/doi/10.1103/PhysRevLett.111.243001}{Phys. Rev. Lett. {\bf 111}, 243001 (2013)}] and disagree with them by about 1.5 and 2.2 standard deviations for $^6$Li and $^7$Li, respectively. Furthermore, our Zemach radius of $^6$Li differs significantly from the nuclear physics value, derived from the nuclear charge and magnetic radii [\href{https://link.aps.org/doi/10.1103/PhysRevA.78.012513}{Phys. Rev. A {\bf 78}, 012513 (2008)}], by more than 6 sigma, indicating an anomalous nuclear structure for $^6$Li. The conclusion that the Zemach radius of $^7$Li is about 40\% larger than that of $^6$Li is confirmed. The obtained Zemach radii are used to calculate the hyperfine splittings of the $2\,^3\!P_J$ states of $^{6,7}$Li$^+$, where an order of magnitude improvement over the previous theory has been achieved for $^7$Li$^+$.
