{
  "id": "hep-ph/0208003",
  "version": "v1",
  "published": "2002-08-01T13:38:48.000Z",
  "updated": "2002-08-01T13:38:48.000Z",
  "title": "Leptogenesis at Low Scale",
  "authors": [
    "Lotfi Boubekeur"
  ],
  "comment": "LateX, 12 pages, axodraw figures",
  "categories": [
    "hep-ph"
  ],
  "abstract": "A typical problem of the leptogenesis scenario is the mismatch between the maximum reheat temperature implied by gravitino overproduction bound and the minimum temperature required to create thermally the lightest right-handed neutrino. We explore the possibility of baryogenesis via leptogenesis in the presence of low scale mass right-handed neutrino. In such a scenario, right-handed neutrinos are created thermally at low reheat temperatures without relying on non-perturbative production mechanisms. We focus on two specific realizations of the scenario, namely the out-of-equilibrium decay of right-handed neutrinos (Fukugita-Yanagida) and the leptogenesis via the $LH_u$ flat direction (Affleck-Dine). We find that in general, the two scenarios are able to produce the required baryon excess for a reasonable amount of CP violation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-08-01T13:38:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "leptogenesis",
      "low scale mass right-handed neutrino",
      "gravitino overproduction bound",
      "low reheat temperatures",
      "maximum reheat temperature"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 591767,
      "adsabs": "2002hep.ph....8003B"
    }
  }
}