{
  "id": "nucl-th/0203068",
  "version": "v1",
  "published": "2002-03-25T10:30:39.000Z",
  "updated": "2002-03-25T10:30:39.000Z",
  "title": "Role of Delta exchange for proton-antiproton annihilation into two-pion and three-pion channels",
  "authors": [
    "M. Betz",
    "E. A. Veit",
    "J. Haidenbauer"
  ],
  "comment": "27 pages, 9 figures, accepted for publication in Eur. Phys. J. A",
  "journal": "Eur.Phys.J. A14 (2002) 113-124",
  "categories": [
    "nucl-th"
  ],
  "abstract": "Proton-antiproton annihilation into two pions and three pions is studied in a baryon-exchange model. Annihilation diagrams involving nucleon as well as Delta-resonance exchanges are included consistently in the two- and three-pion channels. Effects from the initial-state interaction are fully taken into account. A comparison of the influence of the Delta exchange on the considered annihilation channels is made and reveals that its importance for three-pion annihilation is strongly reduced as compared to two-pion annihilation. It is found that annihilation into three uncorrelated pions can yield up to 10 % of the total experimentally observed three-pion annihilation cross section.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2002-03-25T10:30:39.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "proton-antiproton annihilation",
      "three-pion channels",
      "delta exchange",
      "three-pion annihilation cross section",
      "annihilation channels"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1007/s10050-002-8796-z",
      "journal": "European Physical Journal A",
      "year": 2002,
      "month": "May",
      "volume": 14,
      "number": 1,
      "pages": 113
    },
    "note": {
      "typesetting": "TeX",
      "pages": 27,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 584530,
      "adsabs": "2002EPJA...14..113B"
    }
  }
}