2015/11/11 by M. Maniatis, Maniatis, M.
Decision Sciences · Computer Science · #Scientific Computing and Data Management #Computational Physics and Python Applications #Cellular Automata and Applications
paper · pdf · doi:10.48550/arxiv.1511.03574
We emphasize that scattering amplitudes of a wide class of models to any order in the coupling are constructible by on-shell tree subamplitudes. This follows from the Feynman-tree theorem combined with BCFW on-shell recursion relations. In contrast to the usual Feynman diagrams, no virtual particles appear.