{
  "id": "nucl-th/0407011",
  "version": "v2",
  "published": "2004-07-05T12:40:32.000Z",
  "updated": "2004-07-06T08:44:55.000Z",
  "title": "Analysis of Theta^+ production in K^+Xe collisions",
  "authors": [
    "A. Sibirtsev",
    "J. Haidenbauer",
    "S. Krewald",
    "Ulf-G. Meißner"
  ],
  "comment": "9 pages, 7 figures",
  "journal": "Eur.Phys.J. A23 (2005) 491-499",
  "doi": "10.1140/epja/i2004-10094-8",
  "categories": [
    "nucl-th",
    "hep-ex",
    "hep-ph",
    "nucl-ex"
  ],
  "abstract": "The reaction K^+Xe->K^0pX is investigated in a meson-exchange model including rescattering of the secondary protons with the aim to analyze the evidence for the Theta^+(1540) resonance reported by the DIANA collaboration. We confirm that the kinematical cuts introduced by the DIANA collaboration efficiently suppress the background to the K^+n->K^0p reaction which may contribute to the Theta^+(1540) production. We find that these kinematical cuts do not produce a narrow structure in the K^0p effective mass spectra near 1540 MeV. We study the effect of a narrow Theta^+ resonance of both positive and negative parity in comparison with the DIANA data. We show that the K^+Xe->K^0pX calculations without Theta^+ contribution as well as the results obtained with a Theta^+ width of 1 MeV are in comparably good agreement with the DIANA results. More dedicated experiments are called for to establish this exotic baryon resonance.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2004-07-06T08:44:55.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "production",
      "collisions",
      "exotic baryon resonance",
      "kinematical cuts",
      "diana collaboration efficiently suppress"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 653801
    }
  }
}