{
  "id": "0803.1118",
  "version": "v2",
  "published": "2008-03-07T17:08:06.000Z",
  "updated": "2008-04-25T14:45:18.000Z",
  "title": "First Observation of the Decay D_s^+ to proton anti-neutron",
  "authors": [
    "CLEO Collaboration",
    "S. B. Athar"
  ],
  "comment": "7 pages, available through http://www.lns.cornell.edu/public/CLNS/, submitted to PRL Small changes following referee's suggestions",
  "journal": "Phys.Rev.Lett.100:181802,2008",
  "doi": "10.1103/PhysRevLett.100.181802",
  "categories": [
    "hep-ex"
  ],
  "abstract": "Using e^+e^- -> D_s^*+ D_s^- data collected near the peak D_s production energy, E_cm=4170 MeV, with the CLEO-c detector, we present the first observation of the decay D_s^+ -> proton anti-neutron. We measure a branching fraction B(D_s^+ -> p anti-n = (1.30 +- 0.36 +0.12 -0.16) x 10^-3. This is the first observation of a charmed meson decaying into a baryon-antibaryon final state.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2008-04-25T14:45:18.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.25.Ft"
    ],
    "keywords": [
      "first observation",
      "proton anti-neutron",
      "baryon-antibaryon final state",
      "cleo-c detector",
      "production energy"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2008,
      "month": "May",
      "volume": 100,
      "number": 18,
      "pages": 181802
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 780910,
      "adsabs": "2008PhRvL.100r1802A"
    }
  }
}