论文标题
分级化方法对非弹性Lepton-Hadron碰撞的辐射校正
Factorized approach to radiative corrections for inelastic lepton-hadron collisions
论文作者
论文摘要
我们提出了一种分解方法，用于对QED辐射校正进行包含的和半包含的深度无弹性散射，以系统地解释QED和QCD辐射的贡献，并在同等基础上对这两个过程贡献。这是通过利用分解来恢复对数辐射到通用Lepton分布和碎片化（或JET）函数来实现的。数值模拟表明，由强子横向动量的旋转失真引起的QED效应是由实验性BEIT框架和真实光子 - hadron框架之间的不匹配引起的，对于中等$ Q $，可能会大至50 \％，并且对于大型横向动量而变得越来越重要。我们的框架提供了辐射效应的均匀处理，用于从当前和将来的设施（例如电子离子对撞机）中从高能Lepton-Hadron散射中提取三维强体结构。
We propose a factorized approach to QED radiative corrections for inclusive and semi-inclusive deep-inelastic scattering to systematically account for QED and QCD radiation contributions to both processes on equal footing. This is achieved by utilizing factorization to resum logarithmically enhanced QED radiation into universal lepton distribution and fragmentation (or jet) functions. Numerical simulations suggest that the QED effects induced by the rotational distortion of the hadron transverse momentum, arising from the mismatch between the experimental Breit frame and the true photon-hadron frame, can be as large as 50\% for moderate $Q$, and become increasingly important for large transverse momenta. Our framework provides a uniform treatment of radiative effects for extracting three-dimensional hadron structure from high-energy lepton-hadron scattering at current and future facilities, such as the Electron-Ion Collider.
