{
  "id": "1302.0468",
  "version": "v2",
  "published": "2013-02-03T09:56:51.000Z",
  "updated": "2013-05-07T00:34:40.000Z",
  "title": "Role of the $N^*(2080)$ in $pp \\to pK^+ Λ(1520)$ and $π^- p \\to K^0 Λ(1520)$ reactions",
  "authors": [
    "Ju-Jun Xie",
    "Bo-Chao Liu"
  ],
  "comment": "9 pages, 7 figures",
  "journal": "Phys. Rev. C 87, 045210 (2013)",
  "categories": [
    "nucl-th",
    "hep-ph",
    "nucl-ex"
  ],
  "abstract": "We investigate the $\\Lambda(1520)$ hadronic production in the $p p \\to p K^+ \\Lambda(1520)$ and $\\pi^- p \\to K^0 \\Lambda(1520)$ reactions within the effective Lagrangian method. For $\\pi^- p \\to K^0 \\Lambda(1520)$ reaction, in addition to the \"background\" contributions from $t-$channel $K^*$ exchange, $u-$channel $\\Sigma^+$ exchange, and $s-$channel nucleon pole terms, we also consider the contribution from the nucleon resonance $N^*(2080)$ (spin-parity $J^P = 3/2^-$), which has significant coupling to $K\\Lambda(1520)$ channel. We show that the inclusion of the nucleon resonance $N^*(2080)$ leads to a fairly good description of the low energy experimental total cross section data of $\\pi^- p \\to K^0 \\Lambda(1520)$ reaction. From fitting to the experimental data, we get the $N^*(2080)N\\pi$ coupling constant $g_{N^*(2080)N \\pi} = 0.14 \\pm 0.04$. By using this value and with the assumption that the excitation of $N^*(2080)$ is due to the $\\pi^0$-meson exchanges, we calculate the total and differential cross sections of $p p \\to p K^+ \\Lambda(1520)$ reaction. We also demonstrate that the invariant mass distribution and the Dalitz Plot provide direct information of the $\\Lambda(1520)$ production, which can be tested by future experiments.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-05-07T00:34:40.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.20.Gk",
      "13.30.Eg",
      "13.75.Cs"
    ],
    "keywords": [
      "low energy experimental total cross",
      "experimental total cross section data",
      "energy experimental total cross section",
      "channel nucleon pole terms",
      "nucleon resonance"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review C",
      "doi": "10.1103/PhysRevC.87.045210",
      "year": 2013,
      "month": "Apr",
      "volume": 87,
      "number": 4,
      "pages": "045210"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1217571,
      "adsabs": "2013PhRvC..87d5210X"
    }
  }
}