{
  "annotation_id": "aa92e64a-c872-4537-983e-63bdd1c2bda8",
  "date_created": "2026-03-02T18:02:13.632000Z",
  "date_modified": "2026-03-02T18:02:13.632000Z",
  "file_hash": "77933a1043f52ec56fc31ed3e3092efe43f372d91f1a0df0e9f28d477781d576",
  "private": false,
  "record": {
    "abstract": "We measure the rates of elastic and inelastic two-body collisions of cold\nspin-polarized neon atoms in the metastable 3P2 state for 20^Ne and 22^Ne in a\nmagnetic trap. From particle loss, we determine the loss parameter of inelastic\ncollisions beta=6.5(18)x10^{-12} cm^3s^{-1} for 20^Ne and\nbeta=1.2(3)x10^{-11}cm^3{s}^{-1} for 22^Ne. These losses are caused by ionizing\n(i.e. Penning) collisions %to more than and occur less frequently than for\nunpolarized atoms. This proves the suppression of Penning ionization due to\nspin-polarization. From cross-dimensional relaxation measurements, we obtain\nelastic scattering lengths of a=-180(40) a_0 for 20^Ne and a=+150(+80/-50) a_0\nfor 22^Ne, where a_0=0.0529 nm.",
    "arxiv_id": "quant-ph/0502020",
    "authors": [
      "P. Spoden",
      "M. Zinner",
      "N. Herschbach",
      "W. van Drunen",
      "W. Ertmer",
      "G. Birkl"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.223201",
    "journal_ref": "PRL 94, 223201 (2005)",
    "title": "Collisional Properties of Cold Spin-Polarized Metastable Neon Atoms",
    "url": "https://arxiv.org/abs/quant-ph/0502020"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a33b49e5-1978-492c-b5c7-581e29d56a53",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}