{
  "annotation_id": "afd1c15d-e982-4c18-ad03-bbdbce7e22ea",
  "date_created": "2026-03-02T18:00:32.651000Z",
  "date_modified": "2026-03-02T18:00:32.651000Z",
  "file_hash": "d84688154b37d25c244d1cf37e531640404badb9530b14c3d435bb9ffd3a1b78",
  "private": false,
  "record": {
    "abstract": "We propose a direct method of detection of the nuclear anapole moment. It is\nbased on the existence of a linear Stark shift for alkali atoms in their ground\nstate perturbed by a quadrupolar interaction potential and a magnetic field.\nThis shift is proportional to the T-even pseudoscalar built from the\nquadrupolar potential symmetry axis, the directions of the applied electric and\nmagnetic fields.It involves on the one hand the anisotropy of the hyperfine\ninteraction induced by the quadrupolar interaction and, on the other,the static\nelectric dipole moment arising from electroweak interactions inside the\nnucleus. The case of ground state cesium atoms trapped in a uniaxial (hcp)\nphase of solid helium-4 is examined. From an explicit evaluation of both the\nhyperfine structure anisotropy and the static P-odd T-even dipole deduced from\nrecent empirical data about the cesium nuclear anapole moment, we predict the\nStark shift. It is three times the experimental upper bound to be set on the\nT-odd Stark shift of free cesium atoms in order to improve the present limit on\nthe electron EDM.",
    "arxiv_id": "physics/0101098",
    "authors": [
      "Marie-Anne Bouchiat",
      "Claude Bouchiat"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1007/s100530170177",
    "title": "An Atomic Linear Stark Shift Violating P But Not T Arising From the   Electroweak Nuclear Anapole Moment",
    "url": "https://arxiv.org/abs/physics/0101098"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "40ef1197-c924-4db8-af3a-2019670074d3",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}