论文标题
CHY集成的紫外线一致性条件
UV consistency conditions for CHY integrands
论文作者
论文摘要
我们将壳的引导方法从时空振幅扩展到Chy形式主义的世界表格对象。我们发现，与树级非线性Sigma模型，Yang-Mills和$（DF）^2 $理论相对应的集成量是通过要求在BCFW偏移下增强的UV缩放来确定的。回到时空，我们还发现$（df）^2 $理论是通过量规不变性/紫外线缩放和简单的局部性假设固定的。
We extend on-shell bootstrap methods from spacetime amplitudes to the worldsheet objects of the CHY formalism. We find that the integrands corresponding to tree-level non-linear sigma model, Yang-Mills and $(DF)^2$ theory are determined by demanding enhanced UV scaling under BCFW shifts. Back in spacetime, we also find that $(DF)^2$ theory is fixed by gauge invariance/UV scaling and simple locality assumptions.
