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Title: Radiation of scalar modes and the classical double copy

Journal Article · · Journal of High Energy Physics (Online)

The double copy procedure relates gauge and gravity theories through color-kinematics replacements, and holds for both scattering amplitudes and in classical contexts. Moreover, it has been shown that there is a web of theories whose scattering amplitudes are related through operations that exchange color and kinematic factors. In this paper, we generalize and extend this procedure by showing that the classical perturbative double copy of pions corresponds to special Galileons. We consider point-particles coupled to the relevant scalar fields, and find the leading and next to leading order radiation amplitudes. By considering couplings motivated by those that would arise from extracting the longitudinal modes of the gauge and gravity theories, we are able to map the non-linear sigma model radiation to that of the special Galileon. We also construct the single copy by mapping the bi-adjoint scalar radiation to the non-linear sigma model radiation through generalized color-kinematics replacements.

Research Organization:
Univ. of Pennsylvania, Philadelphia, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0013528
OSTI ID:
1612003
Journal Information:
Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 11 Vol. 2018; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (11)

Massive gravity from double copy journal December 2020
The self-dual classical double copy, and the Eguchi-Hanson instanton journal January 2019
The classical double copy of a point charge journal February 2020
An algebraic classification of exceptional EFTs journal August 2019
Double copy for massive quantum particles with spin journal September 2019
Type D spacetimes and the Weyl double copy journal February 2019
Double copy for massive quantum particles with spin text January 2019
The self-dual classical double copy, and the Eguchi-Hanson instanton text January 2018
Type D Spacetimes and the Weyl Double Copy text January 2018
An Algebraic Classification of Exceptional EFTs text January 2019
The Classical Double Copy of a Point Charge text January 2019