中文

由最新类空 e-p 散射数据的色散分析得出的质子电荷半径

高能物理 - 唯象学 2022-02-18 v1

摘要

我们给出对近期电子-质子散射数据的色散理论分析。这允许高精度提取质子的电半径与磁半径,rE=(0.839±0.0020.003+0.002)r_E = (0.839\pm 0.002{}^{+0.002}_{-0.003}) fm 与 rM=(0.846±0.0010.005+0.001)r_M = (0.846\pm 0.001{}^{+0.001}_{-0.005}) fm,其中第一个误差指由自助法(bootstrap)估计的统计型误差,第二个误差指与底层谱函数相关的系统不确定性。

关键词

引用

@article{arxiv.2202.08622,
  title  = {Proton charge radius from a dispersive analysis of the latest space-like $e$-$p$ scattering data},
  author = {Yong-Hui Lin},
  journal= {arXiv preprint arXiv:2202.08622},
  year   = {2022}
}

备注

5 pages, 7figures, contribution to the proceedings of the 19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman (HADRON2021)