{
  "annotation_id": "c472cec2-368d-4651-95d5-cc90ce3b02c4",
  "date_created": "2026-03-02T18:01:25.348000Z",
  "date_modified": "2026-03-02T18:01:25.348000Z",
  "file_hash": "d2b4d5cb42511ae97feff48f5ce4ec3f3ddf23626a2522728aa99b7f9c365a28",
  "private": false,
  "record": {
    "abstract": "We report the status of the solar neutrino project called HELLAZ. In a high\npressure and cooled TPC filled with helium, the detection of each ionisation\nelectron of the track produced by the recoil electron from elastic scattering\ninduced by solar neutrinos, will yield the low energy, high resolution solar\nneutrino spectrum. Two topics are presented ; test of Micromegas gas chambers\ngiving a good discrimination between adjacent ionisation electrons and the\npreliminary test of the direction of the primary electron track from the cloud\nanalysis. These two tests seem rather encouraging.",
    "arxiv_id": "physics/9907029",
    "authors": [
      "J. Dolbeau"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "title": "The solar neutrino project HELLAZ : status report on the hardware and   the simulation",
    "url": "https://arxiv.org/abs/physics/9907029"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2007e757-4325-4ce2-80ae-3b92eba68e5c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}