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Covariant Compton Amplitudes in Gravity with Classical Spin

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arxiv 2309.11249 v2 pith:CHDYRRQ2 submitted 2023-09-20 hep-th gr-qc

N. Emil J. Bjerrum-Bohr , Gang Chen , Marcos Skowronek This is my paper · ORCID
classification hep-thgr-qc
keywords amplitudeamplitudescomptoncovariantphysicalspinaddressapplications
verification ladder T0 review T1 audit T2 compute T3 formal
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We develop a novel amplitude bootstrap technique manifestly free of unphysical poles for classically spinning particles interacting with gravitons utilizing only the double-copy and physical factorization limits. Combined with non-factorization polynomial contact contributions from physical data for Kerr black holes, we can address high-spin-order covariant gravitational Compton amplitudes, identifying a pattern for the amplitude that we believe could extend to all orders in spin. Finally, we outline applications and outstanding questions.

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Cited by 2 Pith papers

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

  1. Generalized Wilson lines and the gravitational scattering of spinning bodies

    hep-th 2024-12 conditional novelty 7.0 of 10

    A new generalized Wilson line representation for spin-1/2 and classical spinning bodies is derived, reproducing known 2PM gravitational scattering observables.

  2. HEFT Numerators from Kinematic Algebra

    hep-th 2025-01 conditional novelty 6.0 of 10

    The heavy-mass effective field theory kinematic numerators are derived as the field theory limit of nested commutators of string vertex operators, reproducing and extending earlier fusion-rule results.

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