论文标题
简化$ d $维度的物理状态总和
Simplifying $D$-Dimensional Physical-State Sums in Gauge Theory and Gravity
论文作者
论文摘要
我们提供了两种独立的系统方法，用于以这种方式执行$ d $维的物理状态总和，以使得未引入虚假的轻锥奇点。自然应用是在维度正则化或较高时空维度的理论的背景下进行的广义单位性。其他应用包括平方矩阵元件以获得横截面，并在规格不变的张量方面进行分解。
We provide two independent systematic methods of performing $D$-dimensional physical-state sums in gauge theory and gravity in such a way so that spurious light-cone singularities are not introduced. A natural application is to generalized unitarity in the context of dimensional regularization or theories in higher spacetime dimensions. Other applications include squaring matrix elements to obtain cross sections, and decompositions in terms of gauge-invariant tensors.
