{
  "annotation_id": "7144640f-de91-4f47-aeb4-aebc29224e4d",
  "date_created": "2026-03-02T18:00:43.014000Z",
  "date_modified": "2026-03-02T18:00:43.014000Z",
  "file_hash": "4eb1f618c937a7e09762379958cd66c41a7287a60debd8484055c4bd3d903c82",
  "private": false,
  "record": {
    "abstract": "The formation of beam halos has customarily been described in terms of a\nparticle-core model in which the space-charge field of the oscillating core\ndrives particles to large amplitudes. This model involves parametric resonance\nand predicts a hard upper bound to the orbital amplitude of the halo particles.\nWe show that the presence of colored noise due to space-charge fluctuations\nand/or machine imperfections can eject particles to much larger amplitudes than\nwould be inferred from parametric resonance alone.",
    "arxiv_id": "physics/0306004",
    "authors": [
      "Courtlandt L. Bohn",
      "Ioannis V. Sideris"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "doi": "10.1103/PhysRevLett.91.264801",
    "journal_ref": "Phys.Rev.Lett. 91 (2003) 264801",
    "title": "Fluctuations Do Matter: Large Noise-Enhanced Halos in Charged-Particle   Beams",
    "url": "https://arxiv.org/abs/physics/0306004"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "32e81bbd-e93e-4f20-8bb7-d113715c964e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}