{
  "id": "hep-ex/0507067",
  "version": "v1",
  "published": "2005-07-14T17:59:02.000Z",
  "updated": "2005-07-14T17:59:02.000Z",
  "title": "Search for Lambda_b -> p pi and Lambda_b -> p K decays in p-pbar collisions at sqrt(s) = 1.96 TeV",
  "authors": [
    "CDF Collaboration",
    "D. Acosta"
  ],
  "comment": "7 pages, 1 figure. Submitted to PRD RC",
  "journal": "Phys.Rev.D72:051104,2005",
  "doi": "10.1103/PhysRevD.72.051104",
  "categories": [
    "hep-ex"
  ],
  "abstract": "We report on a search for Lambda_b -> p pi- and Lambda_b -> p K- (and charge conjugate) decays in p-pbar collisions at sqrt(s) = 1.96 TeV using 193 pb-1 of data collected by CDFII experiment at the Fermilab Tevatron Collider. Data were collected using a track trigger that has been optimized to select tracks belonging to a secondary vertex that is typical of two body charmless decays of b-flavored hadrons, including Lambda_b baryons. As no Lambda_b signal was observed, we set the upper limits on the branching fractions BR(Lambda_b -> p h-) where h is K or pi, of 2.3x10-5 at 90% C.L. and 2.9x10-5 at 95% C.L.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2005-07-14T17:59:02.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "14.20.Mr",
      "13.30.Eg"
    ],
    "keywords": [
      "p-pbar collisions",
      "fermilab tevatron collider",
      "body charmless decays",
      "charge conjugate",
      "secondary vertex"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. D"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 687439
    }
  }
}