{
  "id": "0912.4494",
  "version": "v1",
  "published": "2009-12-22T19:26:42.000Z",
  "updated": "2009-12-22T19:26:42.000Z",
  "title": "Unquenched quark model for baryons: magnetic moments, spins and orbital angular momenta",
  "authors": [
    "R. Bijker",
    "E. Santopinto"
  ],
  "comment": "10 pages, 3 figures, 4 tables, Physical Review C, in press",
  "journal": "Phys.Rev.C80:065210,2009",
  "doi": "10.1103/PhysRevC.80.065210",
  "categories": [
    "nucl-th",
    "hep-ex",
    "hep-ph",
    "nucl-ex"
  ],
  "abstract": "We present an unquenched quark model for baryons in which the effects of the quark-antiquark pairs (up, down and strange) are taken into account in an explicit form via a microscopic, QCD-inspired, quark-antiquark creation mechanism. In the present approach, the contribution of the quark-antiquark pairs can be studied for any inital baryon and for any flavor of the pairs. It is shown that, while the inclusion of quark-antiquark pairs does not affect the baryon magnetic moments, it leads to a sizeable contribution of the orbital angular momentum to the spin of the proton and the Lambda hyperon.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-12-22T19:26:42.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.39.-x",
      "14.20.Jn",
      "14.65.Bt",
      "14.20.Dh"
    ],
    "keywords": [
      "orbital angular momentum",
      "unquenched quark model",
      "quark-antiquark pairs",
      "baryon magnetic moments",
      "quark-antiquark creation mechanism"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review C",
      "year": 2009,
      "month": "Dec",
      "volume": 80,
      "number": 6,
      "pages": "065210"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 841018,
      "adsabs": "2009PhRvC..80f5210B"
    }
  }
}