{
  "id": "1101.0988",
  "version": "v2",
  "published": "2011-01-05T14:34:06.000Z",
  "updated": "2011-02-04T12:37:27.000Z",
  "title": "Constraints on two-neutron separation energy in the Borromean $^{22}$C nucleus",
  "authors": [
    "M. T. Yamashita",
    "R. S. Marques de Carvalho",
    "T. Frederico",
    "L. Tomio"
  ],
  "journal": "Physics Letters B 697, 90 (2011)",
  "doi": "10.1016/j.physletb.2011.01.040",
  "categories": [
    "nucl-th",
    "nucl-ex"
  ],
  "abstract": "The recently extracted matter radius of carbon isotope $^{22}$C allows us to estimate the mean-square distance of a halo neutron with respect to the center-of-mass of this nucleus. By considering this information, we suggest an energy region for an experimental investigation of the unbound $^{21}$C virtual state. Our analysis, in a renormalized zero-ranged three-body model, also indicates that the two-neutron separation energy in $^{22}$C is expected to be found below $\\sim$0.4~MeV, where the $^{22}$C is approximated by a Borromean configuration with a pointlike $^{20}$C and two $s$-wave halo neutrons. A virtual-state energy of $^{21}$C close to zero, would make the $^{22}$C, within Borromean nuclei configurations, the most promising candidate to present an excited bound Efimov state or a continuum three-body resonance.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2011-02-04T12:37:27.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "two-neutron separation energy",
      "constraints",
      "continuum three-body resonance",
      "excited bound efimov state",
      "borromean nuclei configurations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Physics Letters B",
      "year": 2011,
      "month": "Feb",
      "volume": 697,
      "number": 1,
      "pages": 90
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 883357,
      "adsabs": "2011PhLB..697...90Y"
    }
  }
}