{
  "id": "nucl-th/0703086",
  "version": "v2",
  "published": "2007-03-27T13:47:21.000Z",
  "updated": "2007-05-28T09:56:51.000Z",
  "title": "Predictions of Alpha Decay Half lives of Heavy and Superheavy Elements",
  "authors": [
    "C. Samanta",
    "P. Roy Chowdhury",
    "D. N. Basu"
  ],
  "comment": "18 pages including 5 figures and 1 table",
  "journal": "Nucl.Phys.A789:142-154,2007",
  "doi": "10.1016/j.nuclphysa.2007.04.001",
  "categories": [
    "nucl-th",
    "astro-ph",
    "nucl-ex",
    "quant-ph"
  ],
  "abstract": "Theoretical estimates for the lifetimes of several isotopes of heavy elements with Z=102-120 are presented by calculating the quantum mechanical tunneling probability in a WKB framework and using microscopic nucleus-nucleus potential obtained by folding the densities of interacting nuclei with the DDM3Y effective nuclear interaction. The $\\alpha$-decay half lives calculated in this formalism using the experimental $Q$-values are in good agreement over a wide range of experimental data. Half lives are also calculated using $Q$-values extracted from two mass formulae. The Viola-Seaborg-Sobiczewski (VSS) estimates of $\\alpha$-decay half lives with the same $Q$-values are presented for comparison. The half life calculations are found to be quite sensitive to the choice of $Q$-values. Comparison with the experimental data delineates the inadequacies of older mass predictions in the domain of heavy and superheavy elements as compared to the newer one by Muntian-Hofmann-Patyk-Sobiczewski, and highlights necessity of a more accurate mass formula which can predict $Q$-values with even higher precision.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-05-28T09:56:51.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "27.90.+b",
      "21.10.Tg",
      "21.30.Fe",
      "23.60.+e"
    ],
    "keywords": [
      "alpha decay half lives",
      "superheavy elements",
      "half life calculations",
      "older mass predictions",
      "ddm3y effective nuclear interaction"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier",
      "journal": "Nucl. Phys. A"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 18,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 747305
    }
  }
}