Amplitudes, Observables, and Classical Scattering
High Energy Physics - Theory
2019-03-27 v1 General Relativity and Quantum Cosmology
Abstract
We 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.
Cite
@article{arxiv.1811.10950,
title = {Amplitudes, Observables, and Classical Scattering},
author = {David A. Kosower and Ben Maybee and Donal O'Connell},
journal= {arXiv preprint arXiv:1811.10950},
year = {2019}
}
Comments
76 pages