{
  "id": "hep-ex/0603001",
  "version": "v2",
  "published": "2006-03-01T06:57:16.000Z",
  "updated": "2006-03-08T11:08:07.000Z",
  "title": "Evidence for B-> eta' pi and improved measurements for B-> eta' K",
  "authors": [
    "The Belle Collaboration",
    "J. Schuemann"
  ],
  "comment": "5 pages 1 figure",
  "journal": "Phys.Rev.Lett.97:061802,2006",
  "doi": "10.1103/PhysRevLett.97.061802",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We report evidence for exclusive two-body charmless hadronic B meson decays B-> eta' pi, and improved measurements of B-> eta' K. The results are obtained from a data sample of 386 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric energy e+e- collider. We measure BF(B-> eta' pi+)=[ 1.76 +0.67-0.62(stat) +0.15-0.14(syst)] x 10^-6 and BF(B-> eta' pi0)=[ 2.79 +1.02-0.96(stat) +0.25-0.34(syst)] x 10^-6. We also report the ratio of BF(B-> eta' K+) / BF(B-> eta' K0) = 1.17 +-0.08(stat) +-0.03(syst) and direct CP asymmetries for the charged modes.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2006-03-08T11:08:07.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "11.30.Hv",
      "13.25.Hw",
      "14.40.Nd",
      "11.30.Er"
    ],
    "keywords": [
      "measurements",
      "kekb asymmetric energy",
      "direct cp asymmetries",
      "meson decays",
      "data sample"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 711492
    }
  }
}