{
  "annotation_id": "0338847b-583f-4412-9d0d-fc24f30507ca",
  "date_created": "2026-03-02T18:01:18.025000Z",
  "date_modified": "2026-03-02T18:01:18.025000Z",
  "file_hash": "23a24c7a6a9fd27bed85b6cca90e0b11e5ca666380cd9ec5a05c7273dbb5810c",
  "private": false,
  "record": {
    "abstract": "We investigate the possibility of tracking individual hydrogen micro-spheres\nfrom an internal pellet target. Such a method aims to provide the primary\nvertex of a reaction to within about 100 micrometres, without utilizing any\ndetector response. Apart from background considerations the knowledge of the\nreaction vertex may be essential for the reconstruction of many physics\nchannels. This is in particular true for the study of the Psi(3770) decay into\nD-mesons planned at the PANDA detector at the future FAIR facility. Here, the\nreconstruction of displaced vertices is especially difficult since neutral\nparticles are involved.\n  Studies with a pellet target at The Svedberg Laboratory, Uppsala, show the\ntechnical feasibility of a tracking system utilizing fast CCD line-scan\ncameras. Simulations for the reaction p-bar p to Psi(3770) to D+ D- prove the\nlarge impact such a system would have on the data taking and reconstruction at\nPANDA.",
    "arxiv_id": "physics/0701088",
    "authors": [
      "O. Nordhage",
      "I. Lehmann",
      "J. Lith",
      "C. -J. Friden",
      "U. Wiedner"
    ],
    "categories": [
      "physics.ins-det",
      "physics.acc-ph"
    ],
    "doi": "10.1016/j.nima.2006.08.058",
    "journal_ref": "Nucl.Instrum.Meth.A568:561-565,2006",
    "title": "Tracked pellets - a way to improve the efficiency of charmonium studies",
    "url": "https://arxiv.org/abs/physics/0701088"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "33a1983d-4664-4540-9d86-d09127747c12",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}