Abstract

Based on the behavior of elastic scattering of proton and anti-proton at \(\sqrt{s}=1.96\) TeV for squared four-momentum transfer \(0.26<{-}t<1.2(\)GeV\(/c)^{2}\), form factor of proton is predicted. Simplest version of Chou–Yang model is employed for extracting this form factor by fitting experimental data of differential cross section from D0 experiment to a single Gaussian. Root mean square (rms) matter radius of proton is calculated using this form factor. It is found to be equal to 0.89 fm. Which is in good agreement with experimental data and theoretically predicted values from other models.

中文翻译：

---

使用$ \ boldsymbol {\ sqrt {s} = 1.96} $$ eV的ppbar弹性散射数据预测质子的形状因子

摘要

基于质子和反质子在\（\ sqrt {s} = 1.96 \） TeV处四方动量传递\（0.26 <{-} t <1.2（\） GeV \（/ c ）^ {2} \），可以预测质子的形状因子。通过将D0实验的微分横截面实验数据拟合到单个高斯，采用最简单的Chou-Yang模型来提取该形状因子。质子的均方根（rms）物质半径是使用此形状因子计算的。发现等于0.89 fm。这与实验数据和其他模型的理论预测值非常吻合。