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- W3183994675 abstract "Amplitude methods have proven to be a promising technique to perform Post-Minkowskian calculations used as inputs to construct gravitational waveforms. In this paper, we show how these methods can be extended beyond the standard calculations in General Relativity with a minimal coupling to matter. As proof of principle, we consider spinless particles conformally coupled to a gravitational helicity-0 mode. We clarify the subtleties in the matching procedure that lead to the potential for conformally coupled matter. We show that in the probe particle limit, we can reproduce well known results for the field profile. With the scattering amplitudes at hand, we compute the conservative potential and scattering angle for the binary system. We find that the result is a non trivial expansion that involves not only the coupling strengths, but also a non trivial dependence on the energy/momentum of the scattered particles." @default.
- W3183994675 created "2021-08-02" @default.
- W3183994675 creator A5032507670 @default.
- W3183994675 creator A5041717673 @default.
- W3183994675 creator A5080403729 @default.
- W3183994675 date "2021-07-23" @default.
- W3183994675 modified "2023-09-27" @default.
- W3183994675 title "Scattering Amplitudes for Binary Systems beyond GR" @default.
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