论文标题
大型不变质量光子对的电源
Electroproduction of a large invariant mass photon pair
论文作者
论文摘要
我们研究了在运动方向上的光子对的独家电源，在运动方向上，二键子不变质量很大，而核子几乎朝着其原始方向飞行。我们讨论了QCD过程的相对重要性，其中两个光子来自夸克线与单个（双重）伯特勒过程相比，其中一个（两个）光子来自Lepton线。事实证明，这一过程是在JLAB和高能电子离子对撞机上研究细胞核中广义的Parton分布的有前途的工具。
We study the exclusive electroproduction of a photon pair in the kinematical regime where the diphoton invariant mass is large and where the nucleon flies almost in its original direction. We discuss the relative importance of the QCD process where the two photons originate from a quark line compared to the single (double) Bethe-Heitler processes where one (two) photons originate from the lepton line. This process turns out to be a promising tool to study generalized parton distributions in the nucleon, both at the medium energy of JLab and at a high energy electron ion collider.
