{
  "access": "open",
  "curation": {
    "added": "2026-10-23",
    "quality_notes": ["found by targeted web search; verified: GitHub API metadata and homepage link; actively maintained (2026).", "Simulation tool, not the KATRIN spectrum-fit software (which is not public)."],
    "source": "web search (xsec_cevns_mass_bb, 2026-10-23)",
    "status": "curated"
  },
  "description": "C++ framework for electromagnetic field computation and charged-particle tracking (generators, trajectories, interactions, detection) developed for the KATRIN tritium beta spectrometer and used by Project 8.",
  "distributions": [
    {
      "host": "github",
      "role": "primary",
      "url": "https://github.com/KATRIN-Experiment/Kassiopeia"
    },
    {
      "host": "institutional",
      "role": "mirror",
      "url": "https://katrin-experiment.github.io/Kassiopeia/index.html"
    },
    {
      "host": "github",
      "role": "mirror",
      "url": "https://github.com/project8/Kassiopeia"
    }
  ],
  "experiments": ["katrin", "project-8"],
  "id": "kassiopeia",
  "license": "proprietary",
  "license_notes": "as in repo (custom, NOASSERTION in GitHub API)",
  "references": [
    {
      "arxiv": "1612.00262",
      "relation": "describes"
    }
  ],
  "short": "Kassiopeia: field computation and charged-particle tracking framework (KATRIN, Project 8)",
  "software": {
    "development_status": "unknown",
    "interfaces": ["library"],
    "purposes": ["detector-simulation"],
    "repository": "https://github.com/KATRIN-Experiment/Kassiopeia"
  },
  "sources": ["nuclear-decay"],
  "title": "Kassiopeia particle-tracking and field simulation (KATRIN)",
  "topics": ["absolute-mass", "detector-response"],
  "type": "software",
  "url_landing": "https://github.com/KATRIN-Experiment/Kassiopeia"
}