{
  "id": "nucl-th/0609046",
  "version": "v2",
  "published": "2006-09-18T10:13:23.000Z",
  "updated": "2006-11-27T15:38:17.000Z",
  "title": "Chiral approach to antikaons in dense matter",
  "authors": [
    "Laura Tolos",
    "Angels Ramos",
    "Eulogio Oset"
  ],
  "comment": "3 pages, 4 figures, to appear in the proceedings of the IV International Conference on Quarks and Nuclear Physics (QNP06), Madrid, Spain, June 5-10, 2006",
  "categories": [
    "nucl-th",
    "hep-ph"
  ],
  "abstract": "Antikaons in dense nuclear matter are studied using a chiral unitary approach which incorporates the $s$- and p-waves of the $\\bar K N$ interaction. We include, in a self-consistent way, Pauli blocking effects, meson self-energies modified by nuclear short-range correlations and baryon binding potentials. We show that the on-shell factorization cannot be applied to evaluate the in-medium corrections to p-wave amplitudes. We also obtain an attractive shift for the $\\Lambda$ and $\\Sigma$ masses of -30 MeV at saturation density while the $\\Sigma^*$ width gets sensibly increased to about 80 MeV. The moderate attraction developed by the antikaon does not support the existence of very deep and narrow bound states.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2006-11-27T15:38:17.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.65.+f",
      "14.20.Jn",
      "13.75.Jz",
      "25.80.Nv",
      "13.75.-n",
      "14.40.Aq"
    ],
    "keywords": [
      "dense matter",
      "chiral approach",
      "nuclear short-range correlations",
      "narrow bound states",
      "dense nuclear matter"
    ],
    "tags": [
      "conference paper"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 3,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 726310,
      "adsabs": "2007qnp..conf...55T"
    }
  }
}