{
  "id": "2004.11392",
  "version": "v1",
  "published": "2020-04-23T18:00:05.000Z",
  "updated": "2020-04-23T18:00:05.000Z",
  "title": "Gravitational wave background from Standard Model physics: Complete leading order",
  "authors": [
    "J. Ghiglieri",
    "G. Jackson",
    "M. Laine",
    "Y. Zhu"
  ],
  "comment": "33 pages",
  "categories": [
    "hep-ph",
    "astro-ph.CO"
  ],
  "abstract": "We compute the production rate of the energy density carried by gravitational waves emitted by a Standard Model plasma in thermal equilibrium, consistently to leading order in coupling constants for momenta $k\\sim \\pi T$. Summing up the contributions from the full history of the universe, the highest temperature of the radiation epoch can be constrained by the so-called $N_{\\rm eff}$ parameter. The current theoretical uncertainty $\\Delta N_{\\rm eff} \\le 10^{-3}$ corresponds to $T_{\\rm max} \\le 2\\times 10^{17}$ GeV. In the course of the computation, we show how a subpart of the production rate can be determined with the help of standard packages, even if subsequently an IR subtraction and thermal resummation need to be implemented.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-04-23T18:00:05.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "standard model physics",
      "gravitational wave background",
      "complete leading order",
      "production rate",
      "standard model plasma"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 33,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}