Symmetries of Tree-level Scattering Amplitudes

Constraints of the osp(6|4) symmetry on tree-level scattering ampli-tudes in N = 6 superconformal Chern–Simons theory are derived. Supplemented by Feynman diagram calculations, solutions to these con-straints, namely the four- and six-point superamplitudes, are presented and shown to be invariant under Yangian symmetry. This introduces integrability into the amplitude sector of the theory. ar X i