{
  "id": "1501.00071",
  "version": "v1",
  "published": "2014-12-31T03:36:38.000Z",
  "updated": "2014-12-31T03:36:38.000Z",
  "title": "Investigation of $^{23}$N in a three-body model",
  "authors": [
    "Liuyang Zhang",
    "Zhongzhou Ren",
    "Mengjiao Lyu",
    "Chen Ji"
  ],
  "comment": "14 pages, 4 figures",
  "categories": [
    "nucl-th"
  ],
  "abstract": "The neutron-drip-line nucleus $^{23}$N is investigated in a three-body model consisting of a $^{21}$N core and two valence neutrons. By solving the Faddeev equations with the realistic neutron-neutron potentials and the neutron-core potentials, we calculate the ground state properties of $^{23}$N and also find that there is a new excited state with two-neutron separation energy at about 0.18 MeV. The properties, such as the two-neutron separation energies, are obtained with a good agreement with experiments. By calculating the root-mean-square matter radii, the average distances between the valence neutrons, and the average distances between the core and the center-of-mass of the neutron pair, we show that the excited state of $^{23}$N has a clear halo structure. The correlation density distributions of the three-body system are also calculated to analyze its geometric configuration. At last, we find that the excited state of $^{23}$N has a very small binding energy, a large radius and distribution, and a triangular shape similar with the ground state. These roperties of the excited state indicate that it can be an Efimov state.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-12-31T03:36:38.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.10.Gv",
      "21.60.-n",
      "27.30.+t"
    ],
    "keywords": [
      "three-body model",
      "excited state",
      "two-neutron separation energy",
      "average distances",
      "valence neutrons"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevC.91.024001"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1336124
    }
  }
}