Color-kinematics duality, double copy and the unitarity method for higher-derivative QCD and quadratic gravity
Abstract
Here we discuss color-kinematics duality for higher-derivative QCD-like amplitudes. We explicitly show that the duality still holds in this case and it can be instrumental in constructing the associated quadratic-gravity amplitudes by using the double-copy prescription. This allows one to drastically simplify calculations. We also evaluate some tree-level Compton scattering amplitudes in higher-derivative Yang-Mills and quadratic gravity coupled with matter. Furthermore, we illustrate the application of generalized unitarity method for both cases by studying a specific one-loop amplitude.
Keywords
Cite
@article{arxiv.2112.00978,
title = {Color-kinematics duality, double copy and the unitarity method for higher-derivative QCD and quadratic gravity},
author = {Gabriel Menezes},
journal= {arXiv preprint arXiv:2112.00978},
year = {2022}
}
Comments
42 pages, 3 figures. v3: Minor modifications throughout the text and abstract; discussion in the summary section was extended. Revised version as accepted by JHEP