{
  "annotation_id": "dc1483b2-06fe-4b13-a96e-057b999007b4",
  "date_created": "2026-03-02T18:00:57.239000Z",
  "date_modified": "2026-03-02T18:00:57.239000Z",
  "file_hash": "800e7a9f73d7da787802cb96f36e90015a5748003dfeb24c7470e6f0644a3de2",
  "private": false,
  "record": {
    "abstract": "In the years between 2000 and 2002 several pre-series and series modules of\nthe ATLAS EM barrel and end-cap calorimeter were exposed to electron, photon\nand pion beams. The performance of the calorimeter with respect to its finely\nsegmented first sampling has been studied. The polar angle resolution has been\nfound to be in the range 50-60 mrad/sqrt(E (GeV)). The neutral pion rejection\nhas been measured to be about 3.5 for 90% photon selection efficiency at pT=50\nGeV/c. Electron-pion separation studies have indicated that a pion fake rate of\n(0.07-0.5)% can be achieved while maintaining 90% electron identification\nefficiency for energies up to 40 GeV.",
    "arxiv_id": "physics/0505127",
    "authors": [
      "Roberto Sacco"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1016/j.nima.2005.05.041",
    "journal_ref": "Nucl.Instrum.Meth.A550:96-115,2005",
    "title": "Position resolution and particle identification with the ATLAS EM   calorimeter",
    "url": "https://arxiv.org/abs/physics/0505127"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a2fe3f6a-2d16-4d78-a8b6-eefaacf45cb1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}