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  Black-hole scattering with general spin directions from minimal-coupling amplitudes

Guevara, A., Ochirov, A., & Vines, J. (in preparation). Black-hole scattering with general spin directions from minimal-coupling amplitudes.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-3479-A Version Permalink: http://hdl.handle.net/21.11116/0000-0004-347A-9
Genre: Paper

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1906.10071.pdf (Preprint), 483KB
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 Creators:
Guevara, Alfredo, Author
Ochirov, Alexander, Author
Vines, Justin1, Author              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

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Free keywords: High Energy Physics - Theory, hep-th,General Relativity and Quantum Cosmology, gr-qc
 Abstract: We study the link between classical scattering of spinning black holes and quantum amplitudes for massive spin-$s$ particles. Generic spin orientations of the black holes are considered, allowing their spins to be deflected on par with their momenta. We re-derive the spin-exponentiated structure of the relevant tree-level amplitude from minimal coupling to Einstein's gravity, which in the $s\to\infty$ limit generates the black holes' complete series of spin-induced multipoles. The resulting scattering function is seen to encode in a simple way the known net changes in the black-hole momenta and spins at first post-Minkowskian order. We connect our findings to a rigorous framework developed elsewhere for computing such observables from amplitudes.

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 Dates: 2019-06-24
 Publication Status: Not specified
 Pages: 8 pages + appendix + refs, 3 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1906.10071
URI: http://arxiv.org/abs/1906.10071
 Degree: -

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