Nucleon charge radius measurement with low-energy electron scattering
Nuclear Experiment
2025-07-29 v1
Abstract
The charge radius is one of the most basic characteristics of the nucleons. The proton charge radius is especially of great importance for many applications such as the structure studies of the atomic nuclei, the determination of the Rydberg constant and QED tests. Its determination is thus a hot topic in several physics communities due to inconsistent results using electron scattering, atomic and muonic hydrogen spectroscopy. A new measurement of the proton and deuteron charge radii with low energy electron scattering is being conducted in the Research Center for Accelerator and Radioisotope Science (RARiS), Tohoku University, Japan. The current status of the experiment is discussed in the present paper.
Cite
@article{arxiv.2507.19862,
title = {Nucleon charge radius measurement with low-energy electron scattering},
author = {Clement Legris and Rika Danjo and Taiga Goke and Yuki Honda and Kengo Hotta and Rin Kagami and Hiroki Kobayashi and Michael Kohl and Yukie Maeda and Dominique Marchand and Edward Morris and Toshiya Muto and Tetsuya Ohnishi and Shunto Sasaki and Toshimi Suda and Kyo Tsukada and Eric Voutier and Toyohiro Yamauchi and Kosei Yoshimoto},
journal= {arXiv preprint arXiv:2507.19862},
year = {2025}
}
Comments
12 pages, 6 figures