Speaker
Tonnis ter Veldhuis
Description
We demonstrate how the scattering amplitudes of some scalar theories, scaffolded general relativity, multi-flavor DBI, and the special Galileon, vanish at multiple loci in momentum space that include and extend their soft-limit behaviors. We elucidate the factorization of the amplitudes near the zero loci into lower point amplitudes. We explain how the occurrence of the zero loci in these theories can be understood in terms of the double copy formalism.
Author
Co-authors
Diederik Roest
(University of Groningen)
Yang Li
(University of Groningen)