The E12-14-012 experiment, performed in Jefferson Lab Hall A, has collected exclusive electron-scattering data $(e,e^{\prime }p)$ in parallel kinematics using natural argon and natural titanium targets. Here we report the first results of the analysis of the data set corresponding to beam energy 2222 GeV, electron scattering angle $21.5^{\circ }$, and proton emission angle $-{50}^{\circ }$. The differential cross sections, measured with $\approx 4\%$ uncertainty, have been studied as a function of missing energy and missing momentum, and compared to the results of Monte Carlo simulations, obtained from a model based on the distorted-wave impulse approximation.

中文翻译：

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杰斐逊实验室A厅中Ar（e，e'p）和Ti（e，e'p）截面的测量

在杰斐逊实验室A厅进行的E12-14-012实验收集了独家的电子散射数据。 $（Ë，{Ë}^{\prime }p）$使用天然氩气和天然钛靶进行平行运动。在这里，我们报告了与束能量2222 GeV，电子散射角相对应的数据集的分析结果。$\mathrm{21岁}。5^{\circ }$和质子发射角 $-{50}^{\circ }$。差分横截面，用$\approx 4％$ 不确定性已作为缺少的能量和缺少的动量的函数进行了研究，并且与从基于扭曲波脉冲近似的模型获得的蒙特卡洛模拟的结果进行了比较。