Scattering angles in Kerr metrics
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Scattering angles in Kerr metrics. / Damgaard, Poul H.; Hoogeveen, Jitze; Luna, Andres; Vines, Justin.
In: Physical Review D, Vol. 106, No. 12, 124030, 21.12.2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Scattering angles in Kerr metrics
AU - Damgaard, Poul H.
AU - Hoogeveen, Jitze
AU - Luna, Andres
AU - Vines, Justin
PY - 2022/12/21
Y1 - 2022/12/21
N2 - Scattering angles for probes in Kerr metrics are derived for scattering in the equatorial plane of the black hole. We use a method that naturally resums all orders in the spin of the Kerr black hole, thus facilitating comparisons with scattering-angle computations based on the post-Minkowskian expansion from scattering amplitudes or worldline calculations. We extend these results to spinning black-hole probes up to and including second order in the probe spin and any order in the post-Minkowskian expansion for probe spins aligned with the Kerr spin. When truncating to third post-Minkowskian order, our results agree with those obtained by amplitude and worldline methods.
AB - Scattering angles for probes in Kerr metrics are derived for scattering in the equatorial plane of the black hole. We use a method that naturally resums all orders in the spin of the Kerr black hole, thus facilitating comparisons with scattering-angle computations based on the post-Minkowskian expansion from scattering amplitudes or worldline calculations. We extend these results to spinning black-hole probes up to and including second order in the probe spin and any order in the post-Minkowskian expansion for probe spins aligned with the Kerr spin. When truncating to third post-Minkowskian order, our results agree with those obtained by amplitude and worldline methods.
U2 - 10.1103/PhysRevD.106.124030
DO - 10.1103/PhysRevD.106.124030
M3 - Journal article
VL - 106
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 12
M1 - 124030
ER -
ID: 340365623