Abstract
We review recent experiments on HD+ spectroscopy. The reduced proton-deuteron mass to electron mass ratio, \({{\mu }_{{pd}}}{\text{/}}{{m}_{e}}\), is inferred from the comparison of theory and experiment. Theoretical issues related to the calculations of the spin structure, which are currently the main limiting factor of theoretical accuracy, are discussed.
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ACKNOWLEDGMENTS
This work was done in collaboration with Laurent Hilico, Jean-Philippe Karr, Mohammad Haidar (LKB), and Zhen-Xiang Zhong (Wuhan, WIPM CAS) that is gratefully acknowledged.
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Korobov, V.I. Precision Spectroscopy of the Hydrogen Molecular Ions: Present Status of Theory and Experiment. Phys. Part. Nuclei 53, 787–789 (2022). https://doi.org/10.1134/S1063779622040086
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DOI: https://doi.org/10.1134/S1063779622040086