{
  "id": "1006.5772",
  "version": "v2",
  "published": "2010-06-30T06:10:11.000Z",
  "updated": "2010-07-27T14:34:45.000Z",
  "title": "Study of scalar meson f_0(980) and K_0^*(1430) from B \\to f_0(980)ρ(ω, φ) and B \\to K^*_0(1430)ρ(ω) Decays",
  "authors": [
    "Zhi-Qing Zhang"
  ],
  "comment": "17 pages, 5 figures, minor corrections, typos removed, accepted for publication in Phys. Rev. D",
  "journal": "Phys. Rev. D82: 034036, 2010",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "In the two-quark model supposition for $f_0(980)$ and $K_0^{*}(1430)$, the branching ratios and the direct CP-violating asymmetries for decays $\\bar{B}^0\\to f_0(980)\\rho^0(\\omega,\\phi), K^{*0}_0(1430)\\rho^0(\\omega), K^{*-}_0(1430)\\rho^+$ and $B^-\\to f_0(980)\\rho^-, K^{*0}_0(1430)\\rho^-, K^{*-}_0(1430)\\rho^0(\\omega)$ are studied by employing the perturbative QCD (PQCD)factorization approach. we find the following results: (a) if the scalar meson $f_0(980)$ is viewed as a mixture of $s\\bar s$ and $(u\\bar u+d\\bar d)/\\sqrt{2}$, the branching ratios of the decays $\\bar{B}^0\\to f_0(980)\\rho^0(\\omega,\\phi)$ and $B^-\\to f_0(980)\\rho^-$, which are induced by $b\\to d$ transition, are smaller than the currently experimental upper limits, and the predictions for the decay $\\bar{B}^0\\to f_0(980)\\omega, B^-\\to f_0(980)\\rho^-$ are not far away from their limits; (b) in the decays $B\\to K^*_0(1430)\\rho(\\omega)$, which are induced by $b\\to s$ transition, the branch ratio of $\\bar B^0\\to K^{*0}_0(1430)\\rho^0$ is the smallest one in two scenarios, at the order of $10^{-7}$ for scenario I, about $4.8\\times10^{-6}$ for scenario II; (c) the direct CP-asymmetries of the decays $B\\to f_0(980)\\rho(\\omega)$ have a strong dependent on the mixing angle $\\theta$: they are large in the range of $25^\\circ<\\theta<40^\\circ$, and small in the range of $140^\\circ<\\theta<165^\\circ$, while the direct CP-asymmetries of the decays $B\\to K^{*}_0(1430)\\rho(\\omega)$ are not large in both scenarios and most of them are less than 20% in size.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-07-27T14:34:45.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.38.Bx",
      "13.25.Hw",
      "14.40.Nd"
    ],
    "keywords": [
      "scalar meson",
      "direct cp-asymmetries",
      "currently experimental upper limits",
      "branching ratios",
      "two-quark model supposition"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevD.82.034036",
      "journal": "Physical Review D",
      "year": 2010,
      "month": "Aug",
      "volume": 82,
      "number": 3,
      "pages": "034036"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 859940,
      "adsabs": "2010PhRvD..82c4036Z"
    }
  }
}