13–17 May 2024
University of Pittsburgh / Carnegie Mellon University
US/Eastern timezone

Scalar scattering amplitudes: zero loci, factorization, and the double copy

14 May 2024, 17:15
15m
David Lawrence Hall 104 (University of Pittsburgh)

David Lawrence Hall 104

University of Pittsburgh

Quantum Field & String Theory Quantum Field & String Theory

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)

Presentation materials