Flavour-kinematics duality for Goldstone modes

Abstract Three scalar effective field theories have special properties in terms of non-linear symmetries, soft limits and on-shell constructability that arise from their Goldstone nature: the non-linear σ-model, multi-DBI theory and the special Galileon. We discuss how these theories are related via...

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Main Authors: Dijs de Neeling, Diederik Roest, Sam Veldmeijer
Format: Article
Language:English
Published: SpringerOpen 2022-10-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP10(2022)066
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author Dijs de Neeling
Diederik Roest
Sam Veldmeijer
author_facet Dijs de Neeling
Diederik Roest
Sam Veldmeijer
author_sort Dijs de Neeling
collection DOAJ
description Abstract Three scalar effective field theories have special properties in terms of non-linear symmetries, soft limits and on-shell constructability that arise from their Goldstone nature: the non-linear σ-model, multi-DBI theory and the special Galileon. We discuss how these theories are related via flavour-kinematics duality, analogous to the colour-kinematics duality between gravity and gauge theories. At the off-shell level, we identify a specific mapping between the three theories that is crucially dependent on their non-linear symmetries. Similarly, we demonstrate how the on-shell amplitudes factorise into BCJ numerators describing flavour and a scalar version of kinematics, naturally leading to the inclusion of graviton exchange in the SO(M, N) non-linear σ-model. Finally, we map those numerators onto each other, and comment on a similar relation to tensor kinematics. Our results highlight a common structure that underlies the physics of different Goldstone modes.
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spelling doaj.art-c5de587c5b9845b2a6e93b9fcfa39d842022-12-22T02:24:37ZengSpringerOpenJournal of High Energy Physics1029-84792022-10-0120221012910.1007/JHEP10(2022)066Flavour-kinematics duality for Goldstone modesDijs de Neeling0Diederik Roest1Sam Veldmeijer2Van Swinderen Institute for Particle Physics and Gravity, University of GroningenVan Swinderen Institute for Particle Physics and Gravity, University of GroningenVan Swinderen Institute for Particle Physics and Gravity, University of GroningenAbstract Three scalar effective field theories have special properties in terms of non-linear symmetries, soft limits and on-shell constructability that arise from their Goldstone nature: the non-linear σ-model, multi-DBI theory and the special Galileon. We discuss how these theories are related via flavour-kinematics duality, analogous to the colour-kinematics duality between gravity and gauge theories. At the off-shell level, we identify a specific mapping between the three theories that is crucially dependent on their non-linear symmetries. Similarly, we demonstrate how the on-shell amplitudes factorise into BCJ numerators describing flavour and a scalar version of kinematics, naturally leading to the inclusion of graviton exchange in the SO(M, N) non-linear σ-model. Finally, we map those numerators onto each other, and comment on a similar relation to tensor kinematics. Our results highlight a common structure that underlies the physics of different Goldstone modes.https://doi.org/10.1007/JHEP10(2022)066Effective Field TheoriesGauge-Gravity CorrespondenceScattering Amplitudes
spellingShingle Dijs de Neeling
Diederik Roest
Sam Veldmeijer
Flavour-kinematics duality for Goldstone modes
Journal of High Energy Physics
Effective Field Theories
Gauge-Gravity Correspondence
Scattering Amplitudes
title Flavour-kinematics duality for Goldstone modes
title_full Flavour-kinematics duality for Goldstone modes
title_fullStr Flavour-kinematics duality for Goldstone modes
title_full_unstemmed Flavour-kinematics duality for Goldstone modes
title_short Flavour-kinematics duality for Goldstone modes
title_sort flavour kinematics duality for goldstone modes
topic Effective Field Theories
Gauge-Gravity Correspondence
Scattering Amplitudes
url https://doi.org/10.1007/JHEP10(2022)066
work_keys_str_mv AT dijsdeneeling flavourkinematicsdualityforgoldstonemodes
AT diederikroest flavourkinematicsdualityforgoldstonemodes
AT samveldmeijer flavourkinematicsdualityforgoldstonemodes