{
  "id": "nucl-th/0611082",
  "version": "v2",
  "published": "2006-11-22T13:05:54.000Z",
  "updated": "2006-12-01T16:55:28.000Z",
  "title": "The baryon-decuplet in the chiral dynamics of Lambda-hyperons in nuclear matter",
  "authors": [
    "J. Martin Camalich",
    "M. J. Vicente Vacas"
  ],
  "comment": "8 pages, 5 figures",
  "journal": "Phys.Rev.C75:035207,2007",
  "doi": "10.1103/PhysRevC.75.035207",
  "categories": [
    "nucl-th"
  ],
  "abstract": "We study the long range part of the $\\Lambda$-hyperon optical potential in nuclei using Quantum Many Body techniques and flavor-SU(3) Chiral Lagrangians as starting point. More precisely, we study the contributions to the $\\Lambda$-hyperon optical potential due to the long-range two-pion exchange, with $\\Sigma$ and $\\Sigma^*$ baryons in the internal baryonic lines and considering Nh and $\\Delta$h excitations. We also consider the contribution to the spin-orbit potentials that comes out from these terms. Our results support a natural explanation of the smallness of the $\\Lambda$-nuclear spin-orbit interaction and shows the importance of the $\\Sigma^*$ and $\\Delta$ degrees of freedom for the hyperon-nucleus interactions.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2006-12-01T16:55:28.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "21.80.+a",
      "21.65.+f",
      "24.10.Cn",
      "13.75.Ev"
    ],
    "keywords": [
      "nuclear matter",
      "chiral dynamics",
      "hyperon optical potential",
      "lambda-hyperons",
      "baryon-decuplet"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. C"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 732514
    }
  }
}