{
  "annotation_id": "13990d1d-e4df-47d3-8cf1-6a4ca8125e77",
  "date_created": "2026-03-02T18:01:21.481000Z",
  "date_modified": "2026-03-02T18:01:21.481000Z",
  "file_hash": "1438583f0da9e75a60f2808a6587a194dd0a110be26069abe5485b035100aa99",
  "private": false,
  "record": {
    "abstract": "A high-intensity hyperon beam was constructed at CERN to deliver Sigma- to\nexperiment WA89 at the Omega facility and operated from 1989 to 1994. The setup\nallowed rapid changeover between hyperon and conventional hadron beam\nconfigurations. The beam provided a Sigma-flux of 1.4 x 10^5 per burst at mean\nmomenta between 330 and 345 Gev/c, produced by about 3 x 10^10 protons of 450\nGeV/c . At the experiment target the beam had a Sigma-/pi- ratio close to 0.4\nand a size of 1.6 x 3.7 cm^2. The beam particle trajectories and their momenta\nwere measured with a scintillating fibre hodoscope in the beam channel and a\nsilicon microstrip detector at the exit of the channel. A fast transition\nradiation detector was used to identify the pion component of the beam.",
    "arxiv_id": "physics/9801006",
    "authors": [
      "Yu. A. Alexandrov",
      "M. Clement",
      "F. Dropmann",
      "A. Fournier",
      "P. Grafstrom",
      "E. Hubbard",
      "S. Paul",
      "H. W. Siebert",
      "A. Trombini",
      "M. Zavertiaev"
    ],
    "categories": [
      "physics.acc-ph",
      "physics.ins-det"
    ],
    "doi": "10.1016/S0168-9002(98)00228-9",
    "journal_ref": "Nucl.Instrum.Meth. A408 (1998) 359-372",
    "title": "The high-intensity hyperon beam at CERN",
    "url": "https://arxiv.org/abs/physics/9801006"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a99f9aee-c758-4cac-ae38-800cade56804",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}