|
Abstract |
I will discuss the scattering of two compact objects interacting via gravity,
using the so-called world-line Effective Field Theory approach in the post-
Minkowskian expansion (i.e. expanding in the Newton's constant G but not in the
velocities). In particular, I will focus on the computation of classical
observables such as the total emitted momentum. This is obtained by phase-space
integration of the graviton momentum weighted by the modulo squared of the
radiation amplitude. It can be recast as an effective cut two-loop integral that I
will solve using techniques borrowed from collider physics. |
