Amplitudes, observables, and classical scattering

A bstract 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 spe...

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Published inThe journal of high energy physics Vol. 2019; no. 2; pp. 1 - 69
Main Authors Kosower, David A., Maybee, Ben, O’Connell, Donal
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2019
Springer Nature B.V
Springer
SpringerOpen
Subjects
Amplitudes
Classical and Quantum Gravitation
Classical Theories of Gravity
Electrodynamics
Elementary Particles
General Relativity and Quantum Cosmology
High energy physics
High Energy Physics - Theory
Momentum transfer
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Regular Article - Theoretical Physics
Relativity Theory
Scattering
Scattering Amplitudes
String Theory
Classical Theories of Gravity
Scattering Amplitudes
scattering: classical
electromagnetic field
spinless
scattering amplitude
higher-order: 1
momentum transfer
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Summary:A bstract 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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1029-8479
1126-6708
1029-8479
DOI:10.1007/JHEP02(2019)137