{
  "annotation_id": "e80bd063-809c-4135-b237-3df07ac793f1",
  "date_created": "2026-03-02T18:00:22.352000Z",
  "date_modified": "2026-03-02T18:00:22.352000Z",
  "file_hash": "c95bec054db7633235efae0be446883294f0cb03258231458f5cb767f6a7b9cf",
  "private": false,
  "record": {
    "abstract": "Changes in the properties of the vector mesons in hot and dense hadronic\nmatter, as produced in heavy ion collisions, lead to the intriguing possibility\nof the opening of the decay channel $\\omega \\ra \\rho \\pi$, for the omega meson,\nwhich is impossible in free space. This along with the channel $\\omega \\pi \\ra\n\\pi \\pi$ would result in a decrease in its effective life-time enabling it to\ndecay within the hot zone and act as a chronometer in contradiction to the\ncommonly held opinion and would have implications vis a vis determination of\nthe size of the region through pion interferometry. A new peak and a radically\naltered shape of the low invariant mass dilepton spectra appears due to\ndifferent shift in the masses of $\\rho$ and $\\omega$ mesons. The Walecka model\nis used for the underlying calculation for the sake of illustration.",
    "arxiv_id": "nucl-th/9805023",
    "authors": [
      "Pradip Roy",
      "Sourav Sarkar",
      "Jan-e Alam",
      "Binayak Dutt-Roy",
      "Bikash Sinha"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1103/PhysRevC.59.2778",
    "title": "Omega meson as a chronometer and thermometer in hot-dense hadronic   matter",
    "url": "https://arxiv.org/abs/nucl-th/9805023"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "02ddd142-a519-423f-9dec-a78de75c15d7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}