{
  "id": "hep-ph/0601197",
  "version": "v1",
  "published": "2006-01-24T13:01:50.000Z",
  "updated": "2006-01-24T13:01:50.000Z",
  "title": "The $B_K$ Kaon Parameter in the Chiral Limit",
  "authors": [
    "Johan Bijnens",
    "Elvira Gamiz",
    "Joaquim Prades"
  ],
  "comment": "17 pages",
  "journal": "JHEP 0603 (2006) 048",
  "doi": "10.1088/1126-6708/2006/03/048",
  "categories": [
    "hep-ph",
    "hep-lat"
  ],
  "abstract": "We introduce four-point functions in the hadronic ladder resummation approach to large $N_c$ QCD Green functions. We determine the relevant one to calculate the $B_K$ kaon parameter in the chiral limit. This four-point function contains both the large momenta QCD OPE and the small momenta ChPT at NLO limits, analytically. We get $\\hat B_K^\\chi = 0.38 \\pm 0.15$. We also give the ChPT result at NLO for the relevant four-point function to calculate $B_K$ outside the chiral limit, while the leading QCD OPE is the same as the chiral limit one.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2006-01-24T13:01:50.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chiral limit",
      "kaon parameter",
      "large momenta qcd ope",
      "hadronic ladder resummation approach",
      "relevant four-point function"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP",
      "journal": "J. High Energ. Phys."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 709158
    }
  }
}