Scattering amplitude annihilators
arXiv:1905.02224 · doi:10.1007/JHEP02(2020)020
Abstract
Several second order differential operators are shown to annihilate the YM and GR tree scattering amplitudes. In particular we prove a conjecture of Loebbert, Mojaza and Plefka from their investigation of a hidden conformal symmetry in GR.
31 pages; v2: edits in various sections to improve clarity; computer code included in an appendix; v3: acknowledgments added