{
  "annotation_id": "1c25d020-57ba-409c-ad9e-db2df2c2693c",
  "date_created": "2026-03-02T18:00:49.838000Z",
  "date_modified": "2026-03-02T18:00:49.838000Z",
  "file_hash": "8aae6f8054527898664e184951406fa57af878ea2fe37e01f0bcae01d0108339",
  "private": false,
  "record": {
    "abstract": "This paper has been temporarily withdrawn by the authors. In the process of\n4He 2P fine structure measurement in a vapor cell, highly nonlinear dependences\nof 2S_1 - 2P_J intervals on helium density are observed and attributed to light\npressure. If total angular momentum of the excited state is not greater than\nthat of the ground state, there are large polarization dependences and\nvariations of shifts with helium pressure that exhibit apparent singularities.\nA pressure-variable cell may be a better system for control of this effect than\nan atomic beam. A method of avoiding the shifts for the fine structure\nmeasurement is suggested.",
    "arxiv_id": "physics/0401074",
    "authors": [
      "T. Zelevinsky"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "title": "Light-Pressure-Induced Shifts of 2^3S(J=1) = 2^3P(J=0,1,2) Helium Lines   in a Vapor Cell and Implications for the Fine Structure Constant Measurement",
    "url": "https://arxiv.org/abs/physics/0401074"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "149fbb0c-0cc8-4043-81ae-720d80cd9a41",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}