English

Radiation and the classical double copy for color charges

High Energy Physics - Theory 2017-08-02 v3 General Relativity and Quantum Cosmology High Energy Physics - Phenomenology

Abstract

We construct perturbative classical solutions of the Yang-Mills equations coupled to dynamical point particles carrying color charge. By applying a set of color to kinematics replacement rules first introduced by Bern, Carrasco and Johansson (BCJ), these are shown to generate solutions of d-dimensional dilaton gravity, which we also explicitly construct. Agreement between the gravity result and the gauge theory double copy implies a correspondence between non-Abelian particles and gravitating sources with dilaton charge. When the color sources are highly relativistic, dilaton exchange decouples, and the solutions we obtain match those of pure gravity. We comment on possible implications of our findings to the calculation of gravitational waveforms in astrophysical black hole collisions, directly from computationally simpler gluon radiation in Yang-Mills theory.

Cite

@article{arxiv.1611.03493,
  title  = {Radiation and the classical double copy for color charges},
  author = {Walter D. Goldberger and Alexander K. Ridgway},
  journal= {arXiv preprint arXiv:1611.03493},
  year   = {2017}
}

Comments

16 pages, 3 figures. v2: Scalar field solution included in sec. IV. References added. Typos fixed. v3: Matches journal version

R2 v1 2026-06-22T16:48:46.949Z