Amplitudes, Observables, and Classical Scattering

David A. Kosower; Ben Maybee; Donal O'Connell

doi:10.1007/JHEP02(2019)137

Amplitudes, Observables, and Classical Scattering

David A. Kosower, Ben Maybee, Donal O'Connell

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

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.

Original language	English
Article number	137
Journal	Journal of High Energy Physics
Volume	2019
Issue number	2
DOIs	https://doi.org/10.1007/JHEP02(2019)137
Publication status	Published - 20 Feb 2019

Keywords / Materials (for Non-textual outputs)

hep-th
gr-qc

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10.1007/JHEP02(2019)137Licence: Creative Commons: Attribution (CC-BY)

deflectionAccepted author manuscript, 710 KB

Particle Theory at the Higgs Centre
Ball, R., Boyle, P., Del Debbio, L., Gardi, E., Horsley, R., Kennedy, A., O'Connell, D., Smillie, J. & Zwicky, R.
STFC
1/10/17 → 30/09/21
Project: Research
Nonplanar: Simplifying the non-planar sector of gauge theory.
O'Connell, D.
EU government bodies
1/10/14 → 30/09/18
Project: Research

Donal O'Connell
- donalstaffmail.ed.acuk
- School of Physics and Astronomy - Personal Chair of Theoretical Particle Physics
Person: Academic: Research Active

Cite this

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title = "Amplitudes, Observables, and Classical Scattering",

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. ",

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AU - O'Connell, Donal

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AB - 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.

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U2 - 10.1007/JHEP02(2019)137

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Amplitudes, Observables, and Classical Scattering

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Projects

Particle Theory at the Higgs Centre

Nonplanar: Simplifying the non-planar sector of gauge theory.

Profiles

Donal O'Connell

Cite this