{
  "id": "1201.2214",
  "version": "v2",
  "published": "2012-01-11T01:46:10.000Z",
  "updated": "2012-11-05T04:12:29.000Z",
  "title": "Discrimination of $Σ$-nucleus potentials in the angular distribution of elastic scattering of $Σ^-$ hyperons from nuclei",
  "authors": [
    "Toru Harada",
    "Yoshiharu Hirabayashi"
  ],
  "categories": [
    "nucl-th"
  ],
  "abstract": "We theoretically investigate the elastic scattering of 50-MeV $\\Sigma^-$ hyperons from $^{28}$Si and $^{208}$Pb in order to clarify the radial distribution of $\\Sigma$-nucleus (optical) potentials. The angular distributions of differential cross sections are calculated using several potentials that can explain experimental data of the $\\Sigma^-$ atomic X-ray and ($\\pi^-$, $K^+$) reaction spectra simultaneously. The magnitude and oscillation pattern of the angular distributions are understood by the use of nearside/farside decompositions of their scattering amplitudes. It is shown that the resultant angular distributions can considerably discriminate among the radial distributions of the potentials that have a repulsion inside the nuclear surface and an attraction outside the nucleus with a sizable absorption.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-11-05T04:12:29.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.80.+a",
      "27.30.+t",
      "27.80.+w",
      "24.10.Ht"
    ],
    "keywords": [
      "elastic scattering",
      "nucleus potentials",
      "radial distribution",
      "discrimination",
      "resultant angular distributions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevC.86.014606",
      "journal": "Physical Review C",
      "year": 2012,
      "month": "Jul",
      "volume": 86,
      "number": 1,
      "pages": "014606"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1084205,
      "adsabs": "2012PhRvC..86a4606H"
    }
  }
}