{
  "id": "0712.2151",
  "version": "v2",
  "published": "2007-12-13T13:32:35.000Z",
  "updated": "2008-02-17T12:21:59.000Z",
  "title": "Magnetic susceptibility of QCD vacuum at finite density from the nonlocal chiral quark model",
  "authors": [
    "Seung-il Nam",
    "Hyun-Chul Kim"
  ],
  "comment": "5 pages, 2 figures, Talk given at International Workshop Chiral07, Osaka, Japan, 13-16 Nov 2007",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We present in this talk a recent investigation on the magnetic susceptibility (chi) of the QCD vacuum at finite density, utilizing the nonlocal chiral quark model from the instanton vacuum. We take into account the nonzero current-quark mass (m_q) explicitly to consider the effect of explicit flavor SU(3) symmetry breaking. It turns out that, when we turn on the current-quark mass, chi becomes smaller, indicating less response to the externally induced electromagnetic field, in comparison to that for m_q=0.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-02-17T12:21:59.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.40.Ag",
      "12.38.Lg"
    ],
    "keywords": [
      "nonlocal chiral quark model",
      "finite density",
      "qcd vacuum",
      "magnetic susceptibility",
      "nonzero current-quark mass"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1142/S0217732308029381"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 770419,
      "adsabs": "2007arXiv0712.2151N"
    }
  }
}