Observables and amplitudes for spinning particles and black holes
High Energy Physics - Theory
2020-01-29 v2 General Relativity and Quantum Cosmology
Abstract
We develop a general formalism for computing classical observables for relativistic scattering of spinning particles, directly from on-shell amplitudes. We then apply this formalism to minimally coupled Einstein-gravity amplitudes for the scattering of massive spin 1/2 and spin 1 particles with a massive scalar, constructed using the double copy. In doing so we reproduce recent results at first post-Minkowskian order for the scattering of spinning black holes, through quadrupolar order in the spin-multipole expansion.
Keywords
Cite
@article{arxiv.1906.09260,
title = {Observables and amplitudes for spinning particles and black holes},
author = {Ben Maybee and Donal O'Connell and Justin Vines},
journal= {arXiv preprint arXiv:1906.09260},
year = {2020}
}
Comments
32 pages