Spinning black hole scattering at O $$ \mathcal{O} $$ (G 3 S 2): Casimir terms, radial action and hidden symmetry

Spinning black hole scattering at O $$ \mathcal{O} $$ (G 3 S 2): Casimir terms, radial action and hidden symmetry

Abstract We resolve subtleties in calculating the post-Minksowskian dynamics of binary systems, as a spin expansion, from massive scattering amplitudes of fixed finite spin. In particular, the apparently ambiguous spin Casimir terms can be fully determined from the gradient of the spin-diagonal part...

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Bibliographic Details
Main Authors: Dogan Akpinar, Fernando Febres Cordero, Manfred Kraus, Michael S. Ruf, Mao Zeng
Format: Article
Language:English
Published: SpringerOpen 2025-03-01
Series:Journal of High Energy Physics
Subjects:
Scattering Amplitudes
Classical Theories of Gravity
Online Access:https://doi.org/10.1007/JHEP03(2025)126
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