{
  "id": "0809.0542",
  "version": "v1",
  "published": "2008-09-03T04:05:57.000Z",
  "updated": "2008-09-03T04:05:57.000Z",
  "title": "Alpha-Particle Condensation in Nuclear Systems",
  "authors": [
    "Y. Funaki",
    "T. Yamada",
    "H. Horiuchi",
    "G. Röpke",
    "P. Schuck",
    "A. Tohsaki"
  ],
  "comment": "29 pages, 21 figures",
  "categories": [
    "nucl-th"
  ],
  "abstract": "The onset of quartetting, i.e. alpha-particle condensation, in symmetric nuclear matter is studied with the help of an in-medium modified four nucleon equation. It is found that at very low density quartetting wins over pairing, because of the strong binding of the alpha-particles. The critical temperature can reach values up to around 6 MeV. Also the disappearance of alpha-particles with increasing density, i.e. the Mott transition, is investigated. In finite nuclei the Hoyle state, that is the 0_2^+ of 12C, is identified as an \"alpha-particle condensate\" state. It is conjectured that such states also exist in heavier n alpha-nuclei, like 16O, 20Ne, etc. For instance the 6-th 0^+ state of 16O at 15.1 MeV is identified from a theoretical analysis as being a strong candidate for an alpha condensate state. Exploratory calculations are performed for the density dependence of the alpha condensate fraction at zero temperature to address the suppression of the four-particle condensate below nuclear-matter density. Possible quartet condensation in other systems is discussed briefly",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-09-03T04:05:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "alpha-particle condensation",
      "nuclear systems",
      "alpha condensate state",
      "low density quartetting wins",
      "symmetric nuclear matter"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/1742-6596/413/1/012009"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 29,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 795521,
      "adsabs": "2008arXiv0809.0542F"
    }
  }
}