{
  "id": "1303.4423",
  "version": "v2",
  "published": "2013-03-18T20:56:11.000Z",
  "updated": "2015-10-16T20:25:16.000Z",
  "title": "Effective Theory of Dark Matter Decay into Monochromatic Photons and its Implications: Constraints from Associated Cosmic-Ray Emission",
  "authors": [
    "Michael Gustafsson",
    "Thomas Hambye",
    "Tiziana Scarna"
  ],
  "comment": "9 pages, 3 figures, 2 tables; v2: minor changes to match published version",
  "journal": "Phys. Lett. B 724, 288 (2013)",
  "doi": "10.1016/j.physletb.2013.06.032",
  "categories": [
    "hep-ph",
    "astro-ph.CO",
    "astro-ph.HE"
  ],
  "abstract": "We show that there exists only a quite limited number of higher dimensional operators which can naturally lead to a slow decay of dark matter particles into monochromatic photons. As each of these operators inevitably induces decays into particles other than photons, we show that the gamma-lines it induces are always accompanied by a continuum flux of cosmic rays. Hence constraints on cosmic-ray fluxes imply constraints on the intensity of gamma-lines and vice-versa. A comparison with up to date observational bounds shows the possibilities to observe or exclude cosmic rays associated to gamma-line emission, so that one could better determine the properties of the DM particle, possibly discriminating between some of the operators.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-03-18T20:56:11.000Z",
      "comment": "9 pages, 3 figures",
      "journal": null,
      "doi": null
    },
    {
      "version": "v2",
      "updated": "2015-10-16T20:25:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dark matter decay",
      "associated cosmic-ray emission",
      "monochromatic photons",
      "effective theory",
      "constraints"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1016/j.physletb.2013.06.032",
      "journal": "Physics Letters B",
      "year": 2013,
      "month": "Jul",
      "volume": 724,
      "number": "4-5",
      "pages": 288,
      "publisher": "Elsevier"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1224294,
      "adsabs": "2013PhLB..724..288G"
    }
  }
}