{
  "id": "2203.13013",
  "version": "v1",
  "published": "2022-03-24T12:00:17.000Z",
  "updated": "2022-03-24T12:00:17.000Z",
  "title": "The SAGEX Review on Scattering Amplitudes, Chapter 2: An Invitation to Color-Kinematics Duality and the Double Copy",
  "authors": [
    "Zvi Bern",
    "John Joseph Carrasco",
    "Marco Chiodaroli",
    "Henrik Johansson",
    "Radu Roiban"
  ],
  "comment": "40 pages, see also the overview article",
  "categories": [
    "hep-th",
    "gr-qc",
    "hep-ph"
  ],
  "abstract": "Advances in scattering amplitudes have exposed previously-hidden color-kinematics and double-copy structures in theories ranging from gauge and gravity theories to effective field theories such as chiral perturbation theory and the Born-Infeld model. These novel structures both simplify higher-order calculations and pose tantalizing questions related to a unified framework underlying relativistic quantum theories. This introductory mini-review article invites further exploration of these topics. After a brief introduction to color-kinematics duality and the double copy as they emerges at tree and loop-level in gauge and gravity theories, we present two distinct examples: 1) an introduction to the web of double-copy-constructible theories, and 2) a discussion on the application of the double copy to calculation relevant to gravitational-wave physics.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-03-24T12:00:17.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "double copy",
      "color-kinematics duality",
      "scattering amplitudes",
      "sagex review",
      "gravity theories"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 40,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}