Reanalysis of low-energy electron-proton scattering data and proton radius

Abstract

We reanalyze electron-proton scattering data in the momentum transfer region $Q^2<1Ge{V}^2$, which were used to determine proton electric radius, with main focus on the Mainz experiment (Bernauer et al., 2010). We examine dependence of fit results and ${\chi }^2$ on the cut-off in $Q^2$ and degree of fitting polynomial, using pseudo-data and compare it with the case of real experimental data. We find that under some assumptions, the data could be consistent with the radius, obtained from muonic hydrogen.

6 pages, 4 figures

References in corpus (4)

• High-precision determination of the electric and magnetic form factors of the proton
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• The Proton Radius Puzzle
• Two-photon exchange in dispersion approach

Cited by in corpus (3)

• The proton charge radius
• Elastic Positron-Proton Scattering at Low Q${}^2$
• Note on the electromagnetic radius of proton