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.
Dates:
Mardi, 9 novembre, 2021 - 14:00 to 15:00
Localisation / Location:
APC
Salle / Local:
seminar room 483A, contact roperpol@apc.in2p3.fr for Zoom meeting details
- Séminaire
Nom/Prénom // Last name/First name:
Massimiliano Maria Riva
Affiliation:
IPhT
Equipe(s) organisatrice(s) / Organizing team(s):
- Théorie
Pays / Country:
France