论文标题
质子EM形式数据数据与新的$σ_{tot}（e^+e^ - \ to p \ bar p）$测量不同意
Proton em form factors data are in disagreement with new $σ_{tot}(e^+e^- \to p\bar p)$ measurements
论文作者
论文摘要
到现在为止，还存在有关质子和中子电磁形式因素的50个不同的数据收集，也存在于其比率上。另一方面，最近在$σ_{tot}（e^+e^ - \ to p \ bar p）$上从阈值到CCA 13.5 GEV $^2 $的新的非常精确的数据是通过BESIII协作获得的，使用初始状态辐射技术在BEPCII Collider上没有发现的光子。在本文中，研究了$σ_{tot}（e^+e^ - \ to p \ bar p）$与质子形式因素行为的数据数据，首先是在分析质子和中子形式因子数据时获得的，首先是由先进的核素结构和分析模型的分析构成的质子和中性型因素数据一起，并不是要获得的，并且是对中值的分析。先进的质子电磁结构统一和分析模型中的飞机和时型区域中的数据。在这两种情况下，人们都发现新的$σ_{tot}（e^+e^ - \ to p \ bar p）$数据与$σ_{tot}的曲线不一致（E^+e^ - \ to p \ bar p）$由Proton Electric和磁性形式的行为在两种分析中都发现。
Till now almost 50 different data collections on the proton and neutron electromagnetic form factors, also on their ratios, exist. On the other hand, recently new very precise data on $σ_{tot}(e^+e^- \to p \bar p)$ from threshold up to cca 13.5 GeV$^2$ have been obtained by BESIII Collaboration using the initial state radiation technique with an undetected photon at the BEPcII collider. In this paper a consistency of the $σ_{tot}(e^+e^- \to p \bar p)$ data with the proton form factors behaviors is investigated, first when the latter are obtained in the analysis of the proton and neutron form factors data together by the advanced nucleon electromagnetic structure Unitary and Analytic model, and then, as the neutron data are considered to be not very precise, obtained in the analysis of only the proton form factors data in spacelike and timelike regions by the advanced proton electromagnetic structure Unitary and Analytic model. In both cases one finds the new $σ_{tot}(e^+e^- \to p \bar p)$ data to be inconsistent with the curves of $σ_{tot}(e^+e^- \to p \bar p)$ calculated by the proton electric and magnetic form factors behaviors found in both analyses.
