论文标题
QED和QCD的重力耦合：动量空间中的3点和4点功能
Gravitational coupling of QED and QCD: 3- and 4- point functions in momentum space
论文作者
论文摘要
共形对称性对短距离的强烈互动有重要影响，并为实用计算提供了强大的工具。即使量子染色体动力学（QCD）和电动力学（QED）的Lagrangians在共形转换下是不变的，这种对称性也会被量子校正打破。对称性断裂的特征在涉及应力能量张量的相关器中存在无质极线。我们介绍了相关函数的一般研究$ \ langle tjj \ rangle $和$ \ langle ttjj \ rangle $ rangle $的共形场理论（CFT）在动量空间中的平坦背景限制中，遵循张量相关器的重建方法。此外，我们的分析还重点是研究与这些相关器相关的张量结构的尺寸变性。
Conformal symmetry has important consequences for strong interactions at short distances and provides powerful tools for practical calculations. Even if the Lagrangians of Quantum Chromodynamics (QCD) and Electrodynamics (QED) are invariant under conformal transformations, this symmetry is broken by quantum corrections. The signature of the symmetry breaking is encoded in the presence of massless poles in correlators involving stress-energy tensors. We present a general study of the correlation functions $\langle TJJ\rangle$ and $\langle TTJJ\rangle$ of conformal field theory (CFT) in the flat background limit in momentum space, following a reconstruction method for tensor correlators. Furthermore, our analysis also focuses on studying the dimensional degeneracies of the tensor structures related to these correlators.
