{
  "id": "hep-ph/0505223",
  "version": "v1",
  "published": "2005-05-26T09:03:54.000Z",
  "updated": "2005-05-26T09:03:54.000Z",
  "title": "Determination of V_us: recent progresses from theory",
  "authors": [
    "Vittorio Lubicz"
  ],
  "comment": "Prepared for 17th Les Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics, La Thuile, Italy, February 27-March 5, 2005",
  "categories": [
    "hep-ph"
  ],
  "abstract": "Recent experimental and theoretical results on kaon semileptonic decays have significantly improved the determination of the CKM matrix element V_us. After briefly summarizing the impact of the new experimental determinations, I will concentrate in this talk on the theoretical progresses, coming in particular from lattice QCD calculations. These results lead to the estimate |V_us|=0.2250 +- 0.0021, in good agreement with the expectation based on the determination of |V_ud| and the unitarity of the CKM matrix.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-05-26T09:03:54.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "lattice qcd calculations",
      "kaon semileptonic decays",
      "ckm matrix element",
      "experimental determinations",
      "concentrate"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 683421,
      "adsabs": "2005hep.ph....5223L"
    }
  }
}