English

High-Resolution Hydrogen Spectroscopy and the Proton Radius Puzzle

Atomic Physics 2019-03-12 v1

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.

Keywords

Cite

@article{arxiv.1903.04252,
  title  = {High-Resolution Hydrogen Spectroscopy and the Proton Radius Puzzle},
  author = {Simon Thomas and Hélène Fleurbaey and Sandrine Galtier and Lucile Julien and François Biraben and François Nez},
  journal= {arXiv preprint arXiv:1903.04252},
  year   = {2019}
}

Comments

7 pages, 9 figures

R2 v1 2026-06-23T08:04:08.382Z