English

Evaluation of the proton charge radius from e-p scattering

Nuclear Experiment 2015-05-12 v1 High Energy Physics - Phenomenology Nuclear Theory Atomic Physics

Abstract

In light of the proton radius puzzle, the discrepancy between measurements of the proton charge radius from muonic hydrogen and those from electronic hydrogen and electron-proton scattering measurements, we reexamine the charge radius extractions from electron scattering measurements. We provide a recommended value for the proton RMS charge radius, rE=0.879±0.011r_E = 0.879 \pm 0.011 fm, based on a global examination of elastic e-p scattering data. The uncertainties include contributions to account for tension between different data sets and inconsistencies between radii using different extraction procedures.

Keywords

Cite

@article{arxiv.1505.02680,
  title  = {Evaluation of the proton charge radius from e-p scattering},
  author = {John Arrington and Ingo Sick},
  journal= {arXiv preprint arXiv:1505.02680},
  year   = {2015}
}

Comments

Proceedings from the 2015 Workshop on Fundamental Constants

R2 v1 2026-06-22T09:31:56.853Z