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arXiv 0802.1439physics.atom-ph
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^{85}Rb和^{87}Rb的5 S_{1/2}和6 S_{1/2}水平超精细异常的比较

Comparison of hyperfine anomalies in the 5S_{1/2} and 6S_{1/2} levels of ^{85}Rb and ^{87}Rb

A. Perez Galvan, Y. Zhao, L. A. Orozco, E. Gomez, A. D. Lange, F. Baumer, G. D. Sprouse

摘要:

在测量铷原子6 S_{1/2}激发能级的超精细分裂时,我们观察到一个超精细异常。我们使用5 S_{1/2} ->5 P_{1/2} ->6 S_{1/2}激发序列进行两步光谱法。我们测量了6S ~(1/2)能级的分裂,得到了^{85}Rb和^{87}Rb的磁偶极常数分别为A = 239.18(4)MHz和A=807.66(8)MHz。超精细异常差of_{87} delta_{85} =-0.0036(2)来自Bohr Weisskopf效应:对有限核磁与电子之间的点相互作用的修正,并与5 S_{1/2}基态的结果一致。

英文摘要:

We observe a hyperfine anomaly in the measurement of the hyperfine splitting of the 6S_{1/2} excited level in rubidium. We perform two step spectroscopy using the 5S_{1/2}->5P_{1/2}->6S_{1/2} excitation sequence. We measure the splitting of the 6S1/2 level and obtain for the magnetic dipole constants of ^{85}Rb and ^{87}Rb A = 239.18(4) MHz and A=807.66(8) MHz, respectively. The hyperfine anomaly difference of_{87}delta_{85}=-0.0036(2) comes from the Bohr Weisskopf effect: a correction to the point interaction between the finite nuclear magnetization and the electrons, and agrees with that obtained in the 5S_{1/2} ground state.

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