论文标题
从相关函数到QCD中的事件形状
From correlation functions to event shapes in QCD
论文作者
论文摘要
我们提出了一种基于保守电流的相关函数来计算QCD中事件形状的方法。该方法先前已应用于最大的超对称阳米尔理论，但我们证明了超对称并不是必不可少的。作为概念的证明，我们考虑了一个循环（领先顺序）的充电 - 充电相关性的最简单示例。我们计算四个电磁电流的相关函数，并详细说明从中提取事件形状所需的步骤。将结果与标准振幅计算进行了比较。对于CFT社区，明确的四点相关功能也可能引起人们的关注。
We present a method for calculating event shapes in QCD based on correlation functions of conserved currents. The method has been previously applied to the maximally supersymmetric Yang-Mills theory, but we demonstrate that supersymmetry is not essential. As a proof of concept, we consider the simplest example of a charge-charge correlation at one loop (leading order). We compute the correlation function of four electromagnetic currents and explain in detail the steps needed to extract the event shape from it. The result is compared to the standard amplitude calculation. The explicit four-point correlation function may also be of interest for the CFT community.
