Quantum mechanics

Theoretical physics

Eikonal approximation

Gravitation

Spacetime

Dynamics (music)

Scattering amplitude

Scattering

Limit (mathematics)

Acoustics

Classical mechanics

Binary black hole

Physics

Mathematics

Quantum electrodynamics

Mathematical analysis

Gravitational wave

Eikonal equation

Quantum chromodynamics

Resummation

Binary number

Unitarity

Arithmetic

Physical review. D/Physical review. D.

The authors study the two-body gravitational scattering of massive scalars in general spacetime dimensions in the limit when both the energies and the impact parameter are large, which is relevant for the scattering of two black holes. The two- body scattering angle between the two black holes up to the second post- Minkowskian order (2PM) is extracted, which in various limits agrees with known results.

Revisiting the second post-Minkowskian eikonal and the dynamics of binary black holes