{
  "id": "astro-ph/9909231",
  "version": "v1",
  "published": "1999-09-14T11:25:11.000Z",
  "updated": "1999-09-14T11:25:11.000Z",
  "title": "Axion string cosmology and its controversies",
  "authors": [
    "R. A. Battye",
    "E. P. S. Shellard"
  ],
  "comment": "8 Pages",
  "categories": [
    "astro-ph"
  ],
  "abstract": "Understanding axion cosmology has important experimental consequences since it constrains the range of allowed values for the axion mass. In the standard thermal scenario, which assumes Peccei-Quinn symmetry restoration after inflation, an axion string network forms at the phase transition $T\\sim\\fa$ and then radiatively decays into a cosmological background of axions. Under standard assumptions for the evolution of this string network and the radiation from it, axions must have a mass of $\\ma\\sim 100\\mu{\\rm eV}$ with large specified uncertainties. We discuss critically the various suggestions in the literature that the axion mass migh be lighter.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-09-14T11:25:11.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "axion string cosmology",
      "controversies",
      "assumes peccei-quinn symmetry restoration",
      "axion string network forms",
      "axion mass migh"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 507121,
      "adsabs": "1999astro.ph..9231B"
    }
  }
}