Proton charge radius from electron scattering

  title={Proton charge radius from electron scattering},
  author={I. Sick},
  journal={arXiv: Nuclear Experiment},
  • I. Sick
  • Published 2017
  • Physics
  • arXiv: Nuclear Experiment
The rms-radius $R$ of the proton charge distribution is a fundamental quantity needed for precision physics. This radius, traditionally determined from elastic electron-proton scattering via the slope of the Sachs form factor $G_e(q^2)$ extrapolated to momentum transfer $q^2$=0, shows a large scatter. We discuss the approaches used to analyze the e-p data, partly redo these analyses in order to identify the sources of the discrepancies, and explore alternative parameterizations. The problem… Expand
The proton size