3 papers
hep-th2025
Loop-Level Double Copy Relations from Forward Limits
Qu Cao, Song He, Yong Zhang +1
We study double copy relations for loop integrands in gauge theories and gravity based on their constructions from single cuts, which are in turn obtained from forward limits of lo…
hep-th2024
Kinematic numerators from the worldsheet: cubic trees from labelled trees
Song He, Linghui Hou, Jintian Tian +1
In this note we revisit the problem of explicitly computing tree-level scattering amplitudes in various theories in any dimension from worldsheet formulas. The latter are known to…
hep-th2024
Color-Dressed Generalized Biadjoint Scalar Amplitudes: Local Planarity
Freddy Cachazo, Nick Early, Yong Zhang
The biadjoint scalar theory has cubic interactions and fields transforming in the biadjoint representation of . Amplitudes are "colo…