{
  "id": "1111.6679",
  "version": "v1",
  "published": "2011-11-29T03:40:04.000Z",
  "updated": "2011-11-29T03:40:04.000Z",
  "title": "Study of the pure annihilation $B_c \\to A_2 A_3$ decays",
  "authors": [
    "Zhen-Jun Xiao",
    "Xin Liu"
  ],
  "comment": "19 pages, 1 eps figure. arXiv admin note: some text overlap with arXiv:1003.3929",
  "journal": "Phys.Rev. D84, 074033 (2011)",
  "doi": "10.1103/PhysRevD.84.074033",
  "categories": [
    "hep-ph",
    "hep-ex"
  ],
  "abstract": "In this work, we calculate the {\\it CP}-averaged branching ratios and the polarization fractions of the charmless hadronic $B_c \\to A_2 A_3$ decays within the framework of perturbative QCD(pQCD) approach, where $A$ is either a light $^3P_1$ or $^1P_1$ axial-vector meson. These thirty two decay modes can occur through the annihilation topology only. Based on the perturbative calculations and phenomenological analysis, we find the following results: (a) the branching ratios of the considered thirty two $B_c\\to A_2 A_3$ decays are in the range of $10^{-5}$ to $10^{-8}$; (b) $B_c\\to a_1 b_1$, $\\ov{K}_1^0 K_1^+$ and some other decays have sizable branching ratios and can be measured at the LHC experiments; (c) the branching ratios of $B_c \\to A_2(^1P_1) A_3(^1P_1)$ decays are generally much larger than those of $B_c \\to A_2(^3P_1) A_3(^3P_1)$ decays with a factor around (10 $\\sim$ 100); (d) the branching ratios of $B_c \\to \\ov{K}_1^0 K_1^+$ decays are sensitive to the value of $\\theta_K$, which will be tested by the running LHC and forthcoming SuperB experiments; (e) the large longitudinal polarization contributions govern most considered decays and play the dominant role.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-11-29T03:40:04.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "12.38.Bx",
      "13.25.Hw",
      "14.40.Nd"
    ],
    "keywords": [
      "branching ratios",
      "pure annihilation",
      "large longitudinal polarization contributions govern",
      "forthcoming superb experiments",
      "dominant role"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2011,
      "month": "Oct",
      "volume": 84,
      "number": 7,
      "pages": "074033"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 19,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 944688,
      "adsabs": "2011PhRvD..84g4033X"
    }
  }
}