{
  "id": "cond-mat/9805186",
  "version": "v2",
  "published": "1998-05-15T11:08:44.000Z",
  "updated": "1999-01-12T13:39:42.000Z",
  "title": "Stretched exponentials and power laws in granular avalanching",
  "authors": [
    "D. A. Head",
    "G. J. Rodgers"
  ],
  "comment": "8 pages, more concise and some points clarified. To appear in J. Phys. A",
  "doi": "10.1088/0305-4470/32/8/007",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We introduce a model for granular avalanching which exhibits both stretched exponential and power law avalanching over its parameter range. Two modes of transport are incorporated, a rolling layer consisting of individual particles and the overdamped, sliding motion of particle clusters. The crossover in behaviour observed in experiments on piles of rice is attributed to a change in the dominant mode of transport. We predict that power law avalanching will be observed whenever surface flow is dominated by clustered motion.",
  "revisions": [
    {
      "version": "v2",
      "updated": "1999-01-12T13:39:42.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "stretched exponential",
      "granular avalanching",
      "power law avalanching",
      "individual particles",
      "parameter range"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Journal of Physics A Mathematical General",
      "year": 1999,
      "month": "Feb",
      "volume": 32,
      "number": 8,
      "pages": 1387
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "1999JPhA...32.1387H"
    }
  }
}