{
  "annotation_id": "2482823b-d23b-4039-9487-e06152be65b4",
  "date_created": "2026-03-02T18:00:21.656000Z",
  "date_modified": "2026-03-02T18:00:21.656000Z",
  "file_hash": "f0880a2de2e43209d7d8bef0ef6a6e2a4152ca16d7e006c68101b01c42fc0765",
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  "record": {
    "abstract": "The effective intercept parameter of the two-pion Bose-Einstein correlation\nfunction, lambda_*, is found to be sensitive to the partial restoration of\nU_A(1) symmetry in ultra-relativistic nuclear collisions. An increase in the\nyield of the eta\u0027 meson, proposed earlier as a signal of partial U_A(1)\nrestoration, is shown to create a ``hole\u0027\u0027 in the low p_t region of lambda_*. A\ncomparison with NA44 data from central S+Pb collisions at 200 AGeV is made and\nimplications for future heavy ion experiments are discussed.",
    "arxiv_id": "nucl-th/9802074",
    "authors": [
      "Stephen E. Vance",
      "Tamas Csorgo",
      "Dmitri Kharzeev"
    ],
    "categories": [
      "nucl-th",
      "hep-ph"
    ],
    "doi": "10.1103/PhysRevLett.81.2205",
    "journal_ref": "Phys.Rev.Lett. 81 (1998) 2205-2208",
    "title": "Observation of Partial U_A(1) Restoration from Two-Pion Bose-Einstein   Correlations",
    "url": "https://arxiv.org/abs/nucl-th/9802074"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "44558a9d-ee37-424c-932c-b0d100cf263e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}