{
  "id": "1112.4270",
  "version": "v2",
  "published": "2011-12-19T09:13:17.000Z",
  "updated": "2011-12-20T10:00:15.000Z",
  "title": "Constraining the properties of K_{l3} form factors with analyticity and unitarity",
  "authors": [
    "Gauhar Abbas",
    "B. Ananthanarayan",
    "Irinel Caprini",
    "I. Sentitemsu Imsong"
  ],
  "comment": "8 pages latex, PoS style files, talk given at RADCOR 2011, Mamallapuram, India, 26 - 30 September, 2011; replaced with v2 which corrects typographical error in one of the author's names and eliminates 2 other minor typographical errors",
  "journal": "PoS(RADCOR2011)036",
  "categories": [
    "hep-ph",
    "hep-ex",
    "hep-lat"
  ],
  "abstract": "Bounds on the shape parameters of K_{l3} form factors are investigated in a general model independent framework. Using the method of unitarity bounds for correlators evaluated in pQCD, chiral symmetry and experimental information on the phase and modulus of \\pi K form factors up to an energy t_{in}=1 GeV^2, we constrain the shape parameters of the scalar and vector form factors, the value of the scalar form factor at t=M_\\pi^2-M_K^2, and exclude regions where zeros can exist on the real energy line and in the complex energy plane.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2011-12-20T10:00:15.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "shape parameters",
      "properties",
      "analyticity",
      "general model independent framework",
      "vector form factors"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1082075,
      "adsabs": "2012qnp..confE.121A"
    }
  }
}