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Observables and amplitudes for spinning particles and black holes

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arxiv 1906.09260 v2 pith:A2CXYUOM submitted 2019-06-21 hep-th gr-qc

Observables and amplitudes for spinning particles and black holes

classification hep-th gr-qc
keywords amplitudesparticlesscatteringspinningblackformalismholesmassive
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Five-dimensional Geometry from Spinning Amplitudes

    hep-th 2026-05 unverdicted novelty 7.0

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    Generalized Carter and Rüdiger constants for spinning charged probes in √Kerr backgrounds exist only for Wilson coefficients matching spin-exponentiated effective Compton amplitudes up to second order in spin.

  3. Hidden simplicity in the scattering for neutron stars and black holes

    hep-th 2025-09 unverdicted novelty 7.0

    Authors define Kerr generating functions for all-loop scattering on Kerr black holes and apply them to compute leading non-linear tidal effects of neutron stars up to four loops in gravity.

  4. Black Hole Thermodynamics Meets On-Shell Amplitudes: Local Detailed Balance and Thermal Spectrum from Spin Universality and Unitarity

    hep-th 2026-06 unverdicted novelty 6.0

    An on-shell framework derives local detailed balance and the black hole thermal spectrum from spin universality and unitarity.

  5. Gravitational multipoles from scattering amplitudes in higher dimensions

    hep-th 2026-05 unverdicted novelty 6.0

    In five dimensions, minimally coupled massive vector and antisymmetric tensor fields produce only mass or stress quadrupoles respectively from scattering amplitudes, failing to match the Myers-Perry black hole and dem...

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    NLO angular impulse for Kerr black holes computed to all orders in spin via KMOC formalism and leading singularities, with consistency checks and potential extraction.