{
  "id": "1011.6556",
  "version": "v2",
  "published": "2010-11-30T14:36:40.000Z",
  "updated": "2010-12-17T19:11:49.000Z",
  "title": "First Observation of the Decays chi_{cJ} -> pi^0 pi^0 pi^0 pi^0",
  "authors": [
    "BESIII Collaboration"
  ],
  "comment": "7 pages, 3 figures",
  "journal": "Phys.Rev.D83:012006,2011",
  "doi": "10.1103/PhysRevD.83.012006",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We present a study of the P-wave spin -triplet charmonium chi_{cJ} decays (J=0,1,2) into pi^0 pi^0 pi^0 pi^0. The analysis is based on 106 million \\psiprime decays recorded with the BESIII detector at the BEPCII electron positron collider. The decay into the pi^0 pi^0 pi^0 pi^0 hadronic final state is observed for the first time. We measure the branching fractions B(chi_{c0} -> pi^0 pi^0 pi^0 pi^0)=(3.34 +- 0.06 +- 0.44)*10^{-3}, B(chi_{c1} -> pi^0 pi^0 pi^0 pi^0)=(0.57 +- 0.03 +- 0.08)*10^{-3}, and B(chi_{c2} -> pi^0 pi^0 pi^0 pi^0)=(1.21 +- 0.05 +- 0.16)*10^{-3}, where the uncertainties are statistical and systematical, respectively.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-12-17T19:11:49.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.40.Pq",
      "13.20.Gd",
      "13.25.Gv"
    ],
    "keywords": [
      "first observation",
      "bepcii electron positron collider",
      "hadronic final state",
      "triplet charmonium",
      "besiii detector"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2011,
      "month": "Jan",
      "volume": 83,
      "number": 1,
      "pages": "012006"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 878544,
      "adsabs": "2011PhRvD..83a2006A"
    }
  }
}