{
  "annotation_id": "3dfc42c2-16e0-4947-818c-f4905f9a9d83",
  "date_created": "2026-03-02T18:01:11.460000Z",
  "date_modified": "2026-03-02T18:01:11.460000Z",
  "file_hash": "1faf0c54f7712708ab1d82e283bfb522c7b9732d6c2cac8b3eaa025050841bf2",
  "private": false,
  "record": {
    "abstract": "There are several potential advantages for a collider operation with a\nlattice with negative momentum compaction factor (alfa). Since the lattice of\nthe Frascati e+e- Phi-factory DAFNE is flexible enough to provide collider\noperation even with alfa \u003c 0, we have exploited this possibility for an\nexperimental study of the beam dynamics. The negative momentum compaction\nlattices have been successfully implemented and stable 1 A currents have been\nstored in both electron and positron rings without any problem for RF cavities\nand feedback systems operation. First collisions have been tested at low\ncurrents. In this paper we describe the experimental results and compare them\nwith expectations and numerical simulations. Present limitations to DAFNE\noperation with alfa \u003c 0 and ways to overcome them are also discussed.",
    "arxiv_id": "physics/0607036",
    "authors": [
      "M. Zobov",
      "D. Alesini",
      "M. E. Biagini",
      "A. Drago",
      "A. Gallo",
      "C. Milardi",
      "P. Raimondi",
      "B. Spataro",
      "A. Stella"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "journal_ref": "Conf.Proc.C060626:989-991,2006",
    "title": "DAFNE Experience with Negative Momentum Compaction",
    "url": "https://arxiv.org/abs/physics/0607036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2f8db106-be84-4762-99af-79b9ce95ebaf",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}