{
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  "date_created": "2026-03-02T18:00:36.389000Z",
  "date_modified": "2026-03-02T18:00:36.389000Z",
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  "record": {
    "abstract": "Transparencies of the 18th Henry Primakoff lecture at the University of\nPennsylvania, Philadelphia, USA, April 11, 2001 and of the Special lecture\ngiven at the 7th International Workshop on Topics in Astroparticle and\nUnderground Physics, TAUP 2001, Laboratori Nazionali del Gran Sasso, Italy,\nSeptember 9, 2001; to be published by Elsevier Nucl. Phys. B (Proceedings\nsupplements).\n  Various aspects of the concept of mass in modern physics are discussed: 1.\nMass in Special Relativity, 2. Atoms in Static Gravity, 3. Photons in Static\nGravity, 4. Misleading Terminology, 5. Unsolved Problems of mass.",
    "arxiv_id": "physics/0111134",
    "authors": [
      "L. B. Okun"
    ],
    "categories": [
      "physics.pop-ph",
      "hep-ph"
    ],
    "doi": "10.1016/S0920-5632(02)01472-X",
    "journal_ref": "Nucl.Phys.Proc.Suppl. 110 (2002) 151-155",
    "title": "Photons, Clocks, Gravity and the Concept of Mass",
    "url": "https://arxiv.org/abs/physics/0111134"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
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    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}