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Higher-order corrections to spin-spin scalar interactions inHD+andH2+
Physical Review A ( IF 2.9 ) Pub Date : 2020-11-24 , DOI: 10.1103/physreva.102.052827
Jean-Philippe Karr , Mohammad Haidar , Laurent Hilico , Zhen-Xiang Zhong , Vladimir I. Korobov

The largest hyperfine interaction coefficients in the hydrogen molecular ion HD+, i.e., the electron-proton and electron-deuteron spin-spin scalar interactions, are calculated with estimated uncertainties slightly below 1 ppm. The (Zα)2EF relativistic correction for which a detailed derivation is presented, QED corrections up to the order α3ln2(α) along with an estimate of higher-order terms, and nuclear structure corrections are taken into account. Improved results are also given for the electron-proton interaction coefficient in H2+, in excellent agreement with rf spectroscopy experiments. In HD+, a 4σ difference is found in the hyperfine splitting of the (v,L)=(0,3)(9,3) two-photon transition that was recently measured with high precision. The origin of this discrepancy is unknown.

中文翻译:

HD +和H2 +中自旋自旋标量相互作用的高阶校正

氢分子离子中最大的超细相互作用系数 高画质+,即电子-质子和电子-氘化自旋-自旋标量相互作用,以略低于1 ppm的估计不确定性进行计算。的žα2ËF 相对论校正,提供了详细的推导,QED校正至阶 α3ln2α以及对高阶项的估计,并考虑了核结构校正。给出了电子-质子相互作用系数的改进结果。H2+,与射频光谱实验非常吻合。在高画质+, 一种 4σ 在超细分裂中发现差异 v大号=0393最近以高精度测量的双光子跃迁。这种差异的起源是未知的。
更新日期:2020-11-25
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