Amplitudes, observables, and classical scattering
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Publication:1735631
DOI10.1007/JHEP02(2019)137zbMATH Open1411.81217arXiv1811.10950OpenAlexW2902925628WikidataQ128311956 ScholiaQ128311956MaRDI QIDQ1735631
Author name not available (Why is that?)
Publication date: 28 March 2019
Published in: (Search for Journal in Brave)
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.
Full work available at URL: https://arxiv.org/abs/1811.10950
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