论文标题
高$ Q^2 $电子 - 原质子弹性散射在未来的电子离子对撞机上
High $Q^2$ electron-proton elastic scattering at the future Electron-Ion Collider
论文作者
论文摘要
高$ q^2 $处的非偏振电子 - 普罗希望的弹性散射横截面测量值可以改善质子电磁形式的提取，并对可能的硬型两光子交换效应提供限制。我们介绍了对未来电子离子对撞机（EIC）进行这些高$ q^2 $ e-e-e-e-e-polastion测量的可行性的详细研究。结果表明，可以在$ 6〜（gev/c）^2 <q^2 <40〜（gev/c）^2 $的动量转移范围内获得E-P弹性横截面，这将是测量的最高$ Q^2 $值。这些数据都将处于接近统一的虚拟光子极化，$ε\ sim 1 $。
Unpolarized electron-proton elastic scattering cross-section measurements at high $Q^2$ allow for improved extractions of the proton electromagnetic form factors as well as provide constraints on possible hard two-photon exchange effects. We present a detailed study of the feasibility of making these high $Q^2$ e-p elastic measurements at the future Electron-Ion Collider (EIC). The results show that e-p elastic cross sections can be obtained in the momentum transfer range of $6~(GeV/c)^2 < Q^2 < 40~(GeV/c)^2$, which would be the highest-ever $Q^2$ values measured. These data will all be at virtual photon polarizations close to unity, $ε\sim 1$.
