Proton-electron mass ratio from laser spectroscopy of HD⁺ at the part-per-trillion level

Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants such as the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted vibrational spectrum of the deuterated molecular h...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 2020-09, Vol.369 (6508), p.1238-1241
Main Authors: Patra, Sayan, Germann, M., Karr, J.-Ph, Haidar, M., Hilico, L., Korobov, V. I., Cozijn, F. M. J., Eikema, K. S. E., Ubachs, W., Koelemeij, J. C. J.
Format: Article
Language:English
Subjects:
Atomic properties
Beryllium
Deuteration
Deuterons
Electron mass
General Physics
Hydrogen ions
Laser spectroscopy
Line spectra
Mass ratios
Mass spectroscopy
Molecular ions
Nuclei (nuclear physics)
Physical properties
Physics
Protons
Spectroscopy
Spectrum analysis
Vibrational spectra
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