Precision spectroscopy of the hydrogen molecular ions: present status of theory and experiment

Abstract

We review recent experiments on HD${}^{+}$ spectroscopy. The reduced proton-deuteron mass to electron mass ratio, ${\mu }_{pd}/m_e$, 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.

4 pages, 3 Tables, Proceedings of the Conference on Precision Physics and Fundamental Physical Constants, Slovakia, 2021

References in corpus (4)

• Proton-Electron Mass Ratio from Laser Spectroscopy of HD${}^{+}$ at the Part-Per-Trillion Level
• Proton-electron mass ratio by high-resolution optical spectroscopy of ion ensembles in the resolved-carrier regime
• Higher-order corrections to spin-spin scalar interactions in HD${}^{+}$ and H${}_2^{+}$
• Ro-vibrational spin-averaged transitions in the hydrogen molecular ions

Cited by in corpus (3)

• Generation of rotational ground state HD${}^{+}$ ions in an ion trap using a resonance-enhanced threshold photoionization process
• Higher-order corrections to the spin-orbit and spin-spin tensor interactions in HD${}^{+}$
• Spin-orbit interaction in the HD${}^{+}$ ion