论文标题
DVCS的临近领导动力运动学校正：标量目标
Next-to-leading-power kinematic corrections to DVCS: a scalar target
论文作者
论文摘要
利用最新的结果对主要扭曲操作员的后代对两种电磁电流的运营商产品扩展的贡献，我们得出了运动型有限的$ t $的显式表达式，并针对DVCS Helicity弹药振幅对$ 1/Q^4 $ power精确度提出了对DVCS Helicity振幅的目标质量更正。在扰动理论的领先顺序中，所有能力都证明了对运动学校正的IR差异的取消。我们还认为，来自核的相干DVC中的目标质量校正很小，并且不会使分解定理无效。
Using the recent results on the contributions of descendants of the leading twist operators to the operator product expansion of two electromagnetic currents we derive explicit expressions for the kinematic finite-$t$ and target mass corrections to the DVCS helicity amplitudes to the $1/Q^4$ power accuracy. The cancellation of IR divergences for kinematic corrections is demonstrated to all powers in the leading order of perturbation theory. We also argue that target mass corrections in the coherent DVCS from nuclei are small and do not invalidate the factorization theorem.
