{
  "id": "0804.3655",
  "version": "v3",
  "published": "2008-04-23T09:38:16.000Z",
  "updated": "2009-12-16T06:03:37.000Z",
  "title": "Reexamination for the calculation of elliptic flow and other fourier harmonics",
  "authors": [
    "Xiao-Mei Li",
    "Bao-Guo Dong",
    "Yu-Liang Yan",
    "Hai-Liang Ma",
    "Dai-Mei Zhou",
    "Ben-Hao Sa"
  ],
  "comment": "4 pages,1 figures",
  "categories": [
    "nucl-th"
  ],
  "abstract": "We have argued that the azimuthal symmetry and asymmetry components in fourier expansion of particle momentum azimuthal distribution, $v_n$ (n=0, 1, 2, ...), should be calculated as an average of $cos(n\\phi)$ first over particles in an event and then over events (event-wise average) rather than \"an average over all particles in all events\" (particle-wise average). In case of large centrality (multiplicity) bin the particle-wise average is not accurate because the influence (fluctuation) of particle multiplicity was not taken into account.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2009-12-16T06:03:37.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "24.85.+p",
      "25.75.Dw"
    ],
    "keywords": [
      "elliptic flow",
      "fourier harmonics",
      "reexamination",
      "calculation",
      "particle momentum azimuthal distribution"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 784044,
      "adsabs": "2008arXiv0804.3655L"
    }
  }
}