论文标题
天体CFT的后代和新兴的多性分解分解
Descendants in celestial CFT and emergent multi-collinear factorization
论文作者
论文摘要
多共线性分解限制提供了一个窗口，以研究散射幅度的局部性和单位性如何从天体CFT（猜想的全息双重双重双重）中，以衡量平面空间中的引力和重力理论。为此，我们首先使用渐近对称性来开始对天体胶子ope中的保形和kac-moody后代的系统研究。然后，这些OPES的递归应用使我们对计算Gluon振幅的多共线限制的新型全息方法为我们纠正了。我们对共线颗粒的一些最简单的螺旋分配执行此计算。 OPE的预测与文献中表达式的Mellin转换匹配到保形后代中的所有秩序。同样，我们通过研究重力振幅的多共线限在顺序双线性限制的领先近似中，再次找到了针对天体重力群的领先顺序OPE的一致性检查。
Multi-collinear factorization limits provide a window to study how locality and unitarity of scattering amplitudes can emerge dynamically from celestial CFT, the conjectured holographic dual to gauge and gravitational theories in flat space. To this end, we first use asymptotic symmetries to commence a systematic study of conformal and Kac-Moody descendants in the OPE of celestial gluons. Recursive application of these OPEs then equips us with a novel holographic method of computing the multi-collinear limits of gluon amplitudes. We perform this computation for some of the simplest helicity assignments of the collinear particles. The prediction from the OPE matches with Mellin transforms of the expressions in the literature to all orders in conformal descendants. In a similar vein, we conclude by studying multi-collinear limits of graviton amplitudes in the leading approximation of sequential double-collinear limits, again finding a consistency check against the leading order OPE of celestial gravitons.
