We review recent progress using amplitudes methods to obtain new results for the conservative classical scattering of two massive black holes at order O(G4). We include contributions from both potential and radiation modes which effect the conservative dynamics through the tail effect. We compute the 2 → 2 scattering amplitudes and extract the radial action through the amplitude-action formula and derive the scattering angle. By matching we also obtain a Hamiltonian valid for arbitrary scattering trajectories.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - Oct 20 2022|
|Event||2022 Loops and Legs in Quantum Field Theory, LL 2022 - Ettal, Germany|
Duration: Apr 25 2022 → Apr 30 2022
All Science Journal Classification (ASJC) codes