{
  "annotation_id": "a174c654-991c-4d10-a7b7-6ed657a788ce",
  "date_created": "2026-03-02T18:01:18.383000Z",
  "date_modified": "2026-03-02T18:01:18.383000Z",
  "file_hash": "77feaab0781bfcea650471934c91433498f00d22dfe1d06143dc0648eef71d3d",
  "private": false,
  "record": {
    "abstract": "We have investigated cold ionizing heteronuclear collisions in dilute\nmixtures of metastable (2 3S1) 3He and 4He atoms, extending our previous work\non the analogous homonuclear collisions [R. J. W. Stas et al., PRA 73, 032713\n(2006)]. A simple theoretical model of such collisions enables us to calculate\nthe heteronuclear ionization rate coefficient, for our quasi-unpolarized gas,\nin the absence of resonant light (T = 1.2 mK): K34(th) = 2.4*10^-10 cm^3/s.\nThis calculation is supported by a measurement of K34 using magneto-optically\ntrapped mixtures containing about 1*10^8 atoms of each species, K34(exp) =\n2.5(8)*10^-10 cm^3/s. Theory and experiment show good agreement.",
    "arxiv_id": "physics/0701194",
    "authors": [
      "J. M. McNamara",
      "R. J. W. Stas",
      "W. Hogervorst",
      "W. Vassen"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.75.062715",
    "title": "Heteronuclear ionizing collisions between laser-cooled metastable helium   atoms",
    "url": "https://arxiv.org/abs/physics/0701194"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7bf3447e-791c-4f56-83d4-297d3816f50d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}