Observables and amplitudes for spinning particles and black holes
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Publication:2303215
DOI10.1007/JHEP12(2019)156zbMATH Open1431.83101arXiv1906.09260WikidataQ126472283 ScholiaQ126472283MaRDI QIDQ2303215
Author name not available (Why is that?)
Publication date: 2 March 2020
Published in: (Search for Journal in Brave)
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.
Full work available at URL: https://arxiv.org/abs/1906.09260
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