Gravitational radiation contributions to the two-body scattering angle

• DOI: 10.1103/physrevd.107.024020
• Publication Date: 2023-01-17T17:01:12Z
• Authors: Gabriel Luz Almeida; Stefano Foffa; Riccardo Sturani
• Keywords: Square (algebra)

We compute the contribution to two-body scattering angle of a specific class interactions involving exchange gravitational radiative degrees freedom, including nonlinear memory process and square radiation reaction effects. Our computation is performed directly from equations motion, thus computing overall effect both conservative dissipative processes. Such contributions provide in principle last missing ingredients at fifth post-Newtonian, fourth post-Minkowskian order.