{
  "annotation_id": "e21a7f72-e937-4341-a363-c66dbbcfc228",
  "date_created": "2026-03-02T18:01:17.182000Z",
  "date_modified": "2026-03-02T18:01:17.182000Z",
  "file_hash": "9399f2704610b6e760720894c43e07d2d3c5917b7f292ff11a9e8b5282227e04",
  "private": false,
  "record": {
    "abstract": "In this paper we describe the operation and performance of the HERA-B Outer\nTracker, a 112674 channel system of planar drift tube layers. The performance\nof the HERA-B Outer Tracker system fullfilled all requirements for stable and\nefficient operation in a hadronic environment, thus confirming the adequacy of\nthe honeycomb drift tube technology and of the front-end readout system. The\ndetector was stably operated with a gas gain of 30000 in an Ar/CF4/CO2\n(65:30:5) gas mixture, yielding a good efficiency for triggering and track\nreconstruction, larger than 95 % for tracks with momenta above 5 GeV/c. The hit\nresolution of the drift cells was 300 to 320 micrometers and the relative\nmomentum resolution can be described as: sigma(p)/p (in %) = (1.61 +- 0.02) +\n(0.0051 +- 0.0006) p. At the end of the HERA-B running no aging effects in the\nOuter Tracker cells were observed.",
    "arxiv_id": "physics/0701122",
    "authors": [
      "H. Albrecht"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1016/j.nima.2007.03.025",
    "journal_ref": "Nucl.Instrum.Meth.A576:312-330,2007",
    "title": "The Outer Tracker Detector of the HERA-B Experiment. Part III: Operation   and Performance",
    "url": "https://arxiv.org/abs/physics/0701122"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b27943e5-cd8f-4761-b2c8-c4195975999a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}