{
  "id": "hep-ex/0307077",
  "version": "v1",
  "published": "2003-07-28T06:31:17.000Z",
  "updated": "2003-07-28T06:31:17.000Z",
  "title": "Studies of $B^0 \\to ρ^\\pm π^\\mp$ and Evidence of $B^0 \\to ρ^0 π^0$",
  "authors": [
    "K. Abe"
  ],
  "comment": "Submitted to International Europhysics Conference on High Energy Physics, July 2003, Aachen, Germany",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We report studies of $B^0 \\to \\pi^+ \\pi^- \\pi^0$, using $78 {\\rm fb}^{-1}$ of data collected at the $\\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric $e^+e^-$ storage ring. We measure the branching fraction for $B^0 \\to \\rho^\\pm \\pi^\\mp$ to be ${\\mathcal B}(B^0 \\to \\rho^\\pm \\pi^\\mp) = (29.1 ^{+5.0}_{-4.9}({\\rm stat}) \\pm 4.0({\\rm syst})) \\times 10^{-6}$, and find an untagged charge asymmetry ${\\mathcal A} = -0.38^{+0.19}_{-0.21} ({\\rm stat}) ^{+0.04}_{-0.05} ({\\rm syst})$. We find the first evidence for $B^0 \\to \\rho^0 \\pi^0$ with $3.1\\sigma$ statistical significance and with a branching fraction of ${\\mathcal B}(B^0 \\to \\rho^0\\pi^0) = (6.0 ^{+2.9}_{-2.3} ({\\rm stat}) \\pm 1.2 ({\\rm syst})) \\times 10^{-6}$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2003-07-28T06:31:17.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "branching fraction",
      "report studies",
      "belle detector",
      "kekb asymmetric",
      "untagged charge asymmetry"
    ],
    "tags": [
      "conference paper"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 624220,
      "adsabs": "2003hep.ex....7077A"
    }
  }
}