论文标题
经典质子电荷外形尺寸测量的重新解释
Reinterpretation of classic proton charge form factor measurements
论文作者
论文摘要
1963年,从电子散射数据中提取了$ 0.805(11)〜\ mathrm {fm} $的质子半径,并且该经典值已用于表格的标准偶极子参数化中。在尝试重现这一经典结果时,我们发现原始分析中存在符号错误,作者应该发现$ 0.851(19)〜\ Mathrm {fm} $的值。我们还利用现代计算能力来找到强大的功能,以使用该1963年数据的间距和不确定性来提取半径。此最佳功能,即padé$(0,1)$近似值,也给出了与现代高精度质子半径提取物一致的结果。
In 1963, a proton radius of $0.805(11)~\mathrm{fm}$ was extracted from electron scattering data and this classic value has been used in the standard dipole parameterization of the form factor. In trying to reproduce this classic result, we discovered that there was a sign error in the original analysis and that the authors should have found a value of $0.851(19)~\mathrm{fm}$. We additionally made use of modern computing power to find a robust function for extracting the radius using this 1963 data's spacing and uncertainty. This optimal function, the Padé $(0,1)$ approximant, also gives a result which is consistent with the modern high precision proton radius extractions.