{
  "id": "hep-ph/0110194",
  "version": "v2",
  "published": "2001-10-15T16:52:36.000Z",
  "updated": "2002-02-21T12:12:16.000Z",
  "title": "Light quark masses from scalar sum rules",
  "authors": [
    "Matthias Jamin",
    "Jose Antonio Oller",
    "Antonio Pich"
  ],
  "comment": "19 pages, 2 figures, 1 table, text improved, references added, version to be published in Eur. Phys. J C",
  "journal": "Eur.Phys.J.C24:237-243,2002",
  "doi": "10.1007/s100520200930",
  "categories": [
    "hep-ph",
    "hep-ex",
    "hep-lat",
    "nucl-th"
  ],
  "abstract": "In this work, the mass of the strange quark is calculated from QCD sum rules for the divergence of the strangeness-changing vector current. The phenomenological scalar spectral function which enters the sum rule is determined from our previous work on strangeness-changing scalar form factors [1]. For the running strange mass in the MS_bar scheme, we find m_s(2 GeV) = 99 +- 16 MeV. Making use of this result and the light-quark mass ratios obtained from chiral perturbation theory, we are also able to extract the masses of the lighter quarks m_u and m_d. We then obtain m_u(2 GeV) = 2.9 +- 0.6 MeV and m_d(2 GeV) = 5.2 +- 0.9 MeV. In addition, we present an updated value for the light quark condensate.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2002-02-21T12:12:16.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "light quark masses",
      "scalar sum rules",
      "qcd sum rules",
      "phenomenological scalar spectral function",
      "light quark condensate"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 19,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 564346
    }
  }
}