{
  "annotation_id": "c5484def-e638-40e0-8fd4-358a0a08c57c",
  "date_created": "2026-03-02T18:00:01.190000Z",
  "date_modified": "2026-03-02T18:00:01.190000Z",
  "file_hash": "b544678440717c89ed381b9e2023ff90f539319c1dc37aacc8473f4df280c2f4",
  "private": false,
  "record": {
    "abstract": "Medium-induced modifications of the pion and quark-antiquark annihilation\nmechanisms of dilepton production during relativistic heavy ion collisions are\nconsidered. Due to the dense hadron environment, the pions produced during a\ncollision are effectively confined in a finite volume, in which they live for a\nfinite time which is scaled as the lifetime of a fireball. Our results indicate\nthat, due to the space-time finiteness of the pion system which generates the\ncorresponding quantum randomization, the dilepton rates are finite in the\ninvariant low-mass region M\u003c2m_\\pi. It is found that the spatial finiteness of\nquark wave functions and the finiteness of the lifetime of excited states\nresult in the same effect for the quark-antiquark annihilation to dileptons.\nThe breaking of the detailed energy-momentum conservation due to the broken\ntranslation invariance is discussed.",
    "arxiv_id": "nucl-th/0407042",
    "authors": [
      "D. Anchishkin",
      "V. Khryapa",
      "R. Naryshkin",
      "V. Ruuskanen"
    ],
    "categories": [
      "nucl-th"
    ],
    "title": "Annihilation Mechanism of Dilepton Emission from Finite Fireball",
    "url": "https://arxiv.org/abs/nucl-th/0407042"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4c4b4afd-be74-4550-ab6f-a437790b5bfd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}