Speaker
Mariana Carrillo Gonzalez
(Imperial College London)
Description
Amplitude methods have shown to be a promising technique to perform Post-Minkowskian calculations used as inputs to construct gravitational waveforms. In this talk, I will show how to extend these methods beyond GR. As proof of principle, I will consider spinless particles conformally coupled to a gravitational helicity-0 mode. This setup leads to subtleties in the matching procedure used to construct the potential for conformally coupled matter. I will show how to tackle these subtleties when computing the potential and scattering angle for the binary system, and how the result involves a non-trivial dependence on the momentum of the scattered particles.
Author
Mariana Carrillo Gonzalez
(Imperial College London)
