{
  "annotation_id": "ffe5d7dc-f98f-4371-b6f0-5f4086993278",
  "date_created": "2026-03-02T18:00:57.337000Z",
  "date_modified": "2026-03-02T18:00:57.337000Z",
  "file_hash": "3bc4898cb73b60f8770adf4e28fa0b868e025b8d56c57ae7164329b0d87c98ac",
  "private": false,
  "record": {
    "abstract": "We explain a mechanism for branching of a planar negative front. Branching\noccurs as the result of a balance between the destabilizing effect of impact\nionization and the stabilizing effect of electron diffusion on ionization\nfronts. The dispersion relation for transversal perturbation is obtained\nanalytically and reads: $s = |k|/[2 (1 + |k|)] - D |k|^2$, where $D$, which is\nassumed to be small, is the ratio between the electron diffusion coefficient\nand the intensity of the externally imposed electric field. We estimate the\nspacing $\\lambda$ between streamers in a planar discharge and deduce a scaling\nlaw $\\lambda \\sim D^{1/3}$.",
    "arxiv_id": "physics/0505129",
    "authors": [
      "M. Arrayas",
      "M. A. Fontelos",
      "J. L. Trueba"
    ],
    "categories": [
      "physics.flu-dyn",
      "physics.plasm-ph"
    ],
    "doi": "10.1103/PhysRevLett.95.165001",
    "title": "On the mechanism of branching in negative ionization fronts",
    "url": "https://arxiv.org/abs/physics/0505129"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "af41b337-572d-47c8-8a2d-010e8618a97b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}