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Observables and amplitudes for spinning particles and black holes

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Original languageEnglish
Article number156 (2019)
Number of pages32
Journal Journal of High Energy Physics
Publication statusPublished - 23 Dec 2019


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.

    Research areas

  • hep-th, gr-qc

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