论文标题
$ e^+e^ - $ colliders的新型质子电磁形式的新拟合
New fit of time-like proton electromagnetic form factors from $e^+e^-$ colliders
论文作者
论文摘要
研究了有关质子形式因素在Babar，BABAR，BESIII和CMD-3协作中的质子形式因素的数据，以具有有关质子结构的一致信息。先前观察到的歼灭横截面中的振荡以更好的精度确定。讨论了首次确定的单个形式因子的模量，其比率和an灭反应的角度不对称$ e^+e^ - \ to \ bar p p $。横截面上可用数据的FIIT，有效的外形和外形因子比率，允许对从阈值到最高动量的电阈值进行描述。
The data on the proton form factors in the time-like region from the BaBar, BESIII and CMD-3 Collaborations are examined to have coherent pieces of information on the proton structure. Oscillations in the annihilation cross section, previously observed, are determined with better precision. The moduli of the individual form factors, determined for the first time, their ratio and the angular asymmetry of the annihilation reaction $e^+e^-\to\bar p p$ are discussed. Fiits of the available data on the cross section, the effective form factor, and the form factor ratio, allow to propose a description of the electric and magnetic time-like form factors from the threshold up to the highest momenta.
