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.

arXiv comment6 pages, 4 figures

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Cited by in corpus (3)

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