{
  "id": "nucl-th/9507036",
  "version": "v1",
  "published": "1995-07-24T12:11:40.000Z",
  "updated": "1995-07-24T12:11:40.000Z",
  "title": "Chiral Dynamics and the $S_{11}(1535)$ Nucleon Resonance",
  "authors": [
    "N. Kaiser",
    "P. B. Siegel",
    "W. Weise"
  ],
  "comment": "9 pages, 6 postscript figures, e-mail: nkaiser@physik.tu-muenchen.de ; pbsiegel@csupomona.edu weise@physik.tu-muenchen.de",
  "journal": "Phys.Lett. B362 (1995) 23-28",
  "doi": "10.1016/0370-2693(95)01203-3",
  "categories": [
    "nucl-th"
  ],
  "abstract": "The $SU(3)$ chiral effective lagrangian at next-to-leading order is applied to the S-wave meson-baryon interaction in the energy range around the $\\eta N$ threshold. Potentials are derived from this lagrangian and used in a coupled channel calculation of the $\\pi N$, $\\eta N$, $K \\Lambda$, $K \\Sigma$ system in the isospin-$1/2$, $l=0$ partial wave. Using the same parameters as obtained from a fit to the low energy $\\overline{K} N$ data it is found that a quasi-bound $K \\Sigma$-state is formed, with properties remarkably similar to the $S_{11}(1535)$ nucleon resonance. In particular, we find a large partial decay width into $\\eta N$ consistent with the empirical data.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1995-07-24T12:11:40.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.20.Gk",
      "14.40.Aq",
      "14.20.Jn"
    ],
    "keywords": [
      "nucleon resonance",
      "chiral dynamics",
      "large partial decay width",
      "s-wave meson-baryon interaction",
      "energy range"
    ],
    "tags": [
      "journal article",
      "famous paper"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 397580
    }
  }
}