{
  "annotation_id": "3170dc0b-61d8-407d-86ee-d23d50d87e26",
  "date_created": "2026-03-02T18:00:18.471000Z",
  "date_modified": "2026-03-02T18:00:18.471000Z",
  "file_hash": "10e2e3641c28ad99e1410d962afcbe7c37e6d05e131fe8152d0858e596350e03",
  "private": false,
  "record": {
    "abstract": "Dilepton production in proton- and nucleus-induced reactions at SPS energies\nis studied in the relativistic transport model using initial conditions\ndetermined by the string dynamics from RQMD. It is found that both the CERES\nand HELIOS-3 data for dilepton spectra in proton-nucleus reactions can be well\ndescribed by the conventional mechanism of Dalitz decay and direct vector meson\ndecay. However, to provide a quantitative explanation of the observed dilepton\nspectra in central S+Au and S+W collisions requires contributions other than\nthese direct decays. Introducing a decrease of vector meson masses in hot dense\nmedium, we find that these heavy-ion data can also be satisfactorily explained.\nWe also give predictions for Pb+Au collisions at 160 GeV/nucleon using current\nCERES mass resolution and acceptance.",
    "arxiv_id": "nucl-th/9609008",
    "authors": [
      "C. M. Ko",
      "G. Q. Li",
      "G. E. Brown",
      "H. Sorge"
    ],
    "categories": [
      "nucl-th"
    ],
    "doi": "10.1016/S0375-9474(96)00368-5",
    "journal_ref": "Nucl.Phys. A610 (1996) 342c-349c",
    "title": "Enhancement of low-mass dileptons in SPS heavy-ion collisions: possible   evidence for dropping rho meson mass in medium",
    "url": "https://arxiv.org/abs/nucl-th/9609008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0526a0e8-3086-4fa7-af26-da5a1ee4e510",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}