{
  "id": "nucl-th/0503006",
  "version": "v2",
  "published": "2005-03-03T06:33:31.000Z",
  "updated": "2005-05-21T00:49:55.000Z",
  "title": "An alternative understanding of mass formulas in terms of nuclear structure",
  "authors": [
    "M. Hasegawa",
    "K. Kaneko"
  ],
  "comment": "to be published in Prog. Theor. Phys. Vol. 113, No. 6",
  "journal": "Prog.Theor.Phys. 113 (2005) 1215-1237",
  "doi": "10.1143/PTP.113.1215",
  "categories": [
    "nucl-th"
  ],
  "abstract": "A typical form of mass formula is re-explained in terms of nuclear structure. For $ N \\approx Z $ nuclei, we propose to start with the shell model picture and to consider the T=0 $2n-2p$ ($\\alpha$-like) correlations as the fundamental concept, instead of the symmetry energy. Subsequently, the symmetry energy is described on the basis of the $\\alpha$-like superfluidity caused by the T=0 $2n-2p$ correlations, in parallel with the pairing energy described on the basis of the pairing superfluidity. This re-explanation gives useful insight for understanding the nuclear mass formula. The origin of the Wigner energy is also explained in an interacting boson model for the Cooper pairs in the $\\alpha$-like superfluid vacuum. Adding a correction term due to the T=0 $2n-2p$ correlations, which determines the T=0 base level for nuclear masses, can improve the mass formulas in practice.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2005-05-21T00:49:55.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "nuclear structure",
      "alternative understanding",
      "symmetry energy",
      "correlations",
      "nuclear mass formula"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 677724
    }
  }
}