We reanalyze electron-proton scattering data in the momentum transfer region $Q^2<1{\text{GeV}}^2$, 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.

中文翻译：

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重新分析低能电子质子散射数据和质子半径

我们重新分析动量传递区域中的电子-质子散射数据 ${问}^2<\mathrm{1个}{\text{GeV}}^2$，用于确定质子电半径，主要侧重于美因茨实验（Bernauer等人，2010）。我们检查拟合结果的依赖性，并${\chi }^2$ 在截止 ${问}^2$和拟合次数，使用伪数据并将其与真实实验数据进行比较。我们发现，在某些假设下，数据可能与从muonic氢获得的半径一致。