{
  "visual_id": "C04-interacting-regions",
  "title": "Dense candidate versus a gas confined by the box",
  "classification": "conditional_numerical_experiment",
  "run_ids": [
    "20260929T023344889478Z-P4-interacting",
    "20260929T024540159269Z-P4-region-audit"
  ],
  "claim_ids": [
    "C06"
  ],
  "input_files": [
    {
      "path": "runs/20260929T023344889478Z-P4-interacting/qcd-region-240.npz",
      "sha256": "95af3bd96a90ec772647aa4b4e0930fa8d8ab9e6cc20b43bf8c1fb33945e8bd2"
    },
    {
      "path": "runs/20260929T023344889478Z-P4-interacting/confined_cosine-region-240.npz",
      "sha256": "1b698ebd80a93cac881d422dbf24412eb77e512d3722d90b6e6f74065b241fe8"
    },
    {
      "path": "runs/20260929T024540159269Z-P4-region-audit/results.json",
      "sha256": "5e22545d7b0c461a2facbe88c3ae94a351c8940a816b9c97b77947b899acd409"
    }
  ],
  "configurations": {
    "P4-interacting": {
      "n0_fm3": 0.16,
      "binding_MeV": -16.0,
      "incompressibility_MeV": 240.0,
      "symmetry_MeV": 32.0,
      "slope_MeV": 60.0,
      "fa_GeV": 1e+16,
      "initial_radius_km": 2.0,
      "initial_density_fm3": 0.12,
      "radial_cells": [
        160,
        240
      ],
      "outer_km": 10.0,
      "include_muons": true,
      "muon_mass_MeV": 105.6584,
      "scope": "Saturation-calibrated beta-equilibrated density functional, weak gravity, static canonical variations",
      "calibration_context": "https://arxiv.org/abs/2004.07805"
    },
    "P4-region-audit": {
      "source": "20260929T023344889478Z-P4-interacting",
      "outer_boundary_test_km": 15.0,
      "outer_boundary_cells": 240,
      "energy_curvature_negative_tolerance": 1e-06,
      "density_active_threshold_fm3": 1e-06
    }
  },
  "assumptions": {
    "P4-interacting": [
      "One explicit energy functional supplies composition, pressure, chemical potentials and scalar source. Saturation anchors calibrate a benchmark; they do not reproduce an interacting chiral nuclear Hamiltonian.",
      "Ordinary neutron/proton splitting and lepton masses are fixed in this scalar-mass benchmark. Electrons and muons satisfy a common chemical potential and charge neutrality. Interacting attraction response is an independent unknown.",
      "Canonical density is varied independently in every radial cell at fixed baryon number. This is local static feedback, not the previous one-radius cloud.",
      "Newtonian shell gravity is accepted only in the weak-field regime; no TOV or relativistic dynamical stability is claimed.",
      "Matter removal is a specified intervention with an energy change, not a simulated supernova or a formation-rate prediction.",
      "A stable energy extremum is not a cosmologically produced, quantum-complete or observationally allowed compact object."
    ],
    "P4-region-audit": [
      "The canonical profiles come from the same saturation-calibrated scalar-mass functional. No parameter is adjusted to pass a stability or observational test.",
      "The full radial field/density second variation includes their cross derivatives and weak gravitational response, projected to exactly fixed baryon number.",
      "Nonnegative curvature tests a local static minimum of this discretized energy. It is not a relativistic or nonradial mode spectrum.",
      "Outer-box variation distinguishes a localized region from a pressure-supported gas confined by a numerical wall.",
      "Unsupported evolution removes matter by a prescribed intervention. The initial energy change and field evolution are distinct from hydrodynamic ejecta or a computed formation channel.",
      "The source manifest specifies the lepton closure. Nuclei, pairing, finite temperature and matched theta-dependent nuclear operators remain physical limitations even when numerics converge."
    ]
  },
  "plotted_values": {
    "path": "C04-interacting-regions-data.json",
    "sha256": "15b711660912246c7084d10263221d4cf1d375bc56a65c7f51b935b2e759e48b"
  },
  "caption": "Both actions use the same ordinary saturation anchors, fixed baryon number and weak shell gravity. The cosine candidate passes radial energy-curvature and outer-box tests; the QCD gas radius follows the box. Muons are included after the electron-only audit identified their threshold. A local minimum of this phenomenological cold functional is not a matched astrophysical object.",
  "alt_text": "The cosine model confines dense matter and a nonzero field within about two kilometers; the QCD field returns near zero and matter fills the numerical box.",
  "generator": "src/metastable/experiment_report.py",
  "generator_sha256": "00ba19fa7e51a7b74e16e13e473754e9c41eedcadda657586c8f5ceb1b90100f",
  "command": "python run.py full experiment-report",
  "output_sha256": {
    "svg": "873a60db22f8d49eb6cb78e20718a8b157580867bfacfec6e7434961c1d4b0bd",
    "png": "37d8dc9cba6417ff269fd3d56bd055dad67a2aa53ce5749d77b884fd93b9fa9f"
  }
}