论文标题
从PRAD数据中独立于质子电荷半径独立提取
Model Independent Extraction of the Proton Charge Radius from PRad data
论文作者
论文摘要
质子半径拼图激发了一些新实验，旨在提取质子电荷半径并解决拼图。最近，杰斐逊实验室的一种新的电子普罗顿散射实验Prad报告了质子电荷半径为$ 0.831 \ pm 0.007_ \ textNormal {statistics} \ pm 0.012_ \ textnormal {systematic {systematic} $。该值是通过使用理性函数模型来获得质子电象征的。我们使用PRAD数据中质子电荷半径的$ z $扩展执行独立于模型的提取。我们发现，与PRAD报告的统计误差相比，与模型无关的统计误差大于50 \％。
The proton radius puzzle has motivated several new experiments that aim to extract the proton charge radius and resolve the puzzle. Recently PRad, a new electron-proton scattering experiment at Jefferson Lab, reported a proton charge radius of $0.831\pm 0.007_\textnormal{statistical}\pm 0.012_\textnormal{systematic}$. The value was obtained by using a rational function model for the proton electric form factor. We perform a model-independent extraction using $z$-expansion of the proton charge radius from PRad data. We find that the model-independent statistical error is more than 50\% larger compared to the statistical error reported by PRad.
