Plane wave backgrounds and colour-kinematics duality

Author: 

Adamo, T
Casali, E
Mason, L
Nekovar, S

Publication Date: 

28 February 2019

Journal: 

JOURNAL OF HIGH ENERGY PHYSICS

Last Updated: 

2019-08-18T18:05:15.837+01:00

Issue: 

2

Volume: 

2019

DOI: 

10.1007/JHEP02(2019)198

abstract: 

© 2019, The Author(s). We consider perturbative gauge theory on a fixed Yang-Mills plane wave background, describing its Feynman rules in detail. Using these rules, the tree-level 4-point gluon amplitude is computed. As an application, we investigate whether some notion of colour-kinematics duality — a relation between the colour and kinematic constituents of the amplitude — holds on the plane wave background. Although the duality is obstructed, the obstruction has an interesting and highly-constrained structure. This plane wave version of colour-kinematics duality reduces on a flat background to the well-known identities underpinning the BCJ relations for colour-ordered partial amplitudes, and constrains representations of tree-level amplitudes beyond 4-points.

Symplectic id: 

957864

Download URL: 

Submitted to ORA: 

Submitted

Publication Type: 

Journal Article