High-Resolution Hydrogen Spectroscopy and the Proton Radius Puzzle

Abstract

High resolution spectroscopy of the hydrogen atom takes on particular importance in the new SI, as it allows to accurately determine fundamental constants, such as the Rydberg constant and the proton charge radius. Recently, the second most precisely measured transition frequency in hydrogen, 1S - 3S, was obtained in our group. In the context of the Proton Radius Puzzle, this result calls for further investigation.

7 pages, 9 figures

References in corpus (2)

• The Proton Radius Puzzle
• Index of refraction of gases for matter waves: effect of the motion of the gas particles on the calculation of the index

Cited by in corpus (1)

• Spectroscopic tests for short-range modifications of Newtonian and post-Newtonian potentials