Amplitudes, observables, and classical scattering
By David A. Kosower, Ben Maybee, D. O’Connell. Journal of High Energy Physics, 2018
388 citations recorded by the source corpus.
A bstractWe present a formalism for computing classically measurable quantities directly from on-shell quantum scattering amplitudes. We discuss the ingredients needed for obtaining the classical result, and show how to set up the calculation to derive the result efficiently. We do this without specializing to a specific theory. We study in detail two examples in electrodynamics: the momentum transfer in spinless scattering to next-to-leading order, and the momentum radiated to leading order.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/cbd37e0111efb31d36cf94c9952b3ed2ed9206a4
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Post-Minkowskian Hamiltonians in general relativity (2019, background): “[24] for a very nice and clear discussion of this issue.”
- Radiative contribution to classical gravitational scattering at the third order in G (2020, methodology): “[15] D.”
- Classical and quantum scattering in post-Minkowskian gravity (2019, methodology): “] Let us also mention some further (partly conjectural) work concerning the link between the gravitational scattering amplitude of spinning particles and the classical gravitational interaction of Kerr black holes [29–33], as well as work on the computation of classically measurable quantities from ”
- Spinning black hole binary dynamics, scattering amplitudes, and effective field theory (2020, methodology): “An alternative approach is to directly obtain observables from the amplitudes [13, 38], bypassing the Hamiltonian and EFT matching.”