{
  "id": "astro-ph/9407006",
  "version": "v2",
  "published": "1994-07-01T21:41:55.000Z",
  "updated": "1994-07-07T20:00:34.000Z",
  "title": "Big-Bang Nucleosynthesis and the Baryon Density of the Universe",
  "authors": [
    "Craig J Copi",
    "David N. Schramm",
    "Michael S. Turner"
  ],
  "comment": "21 pages+6 figs, LaTeX(2.09), FERMILAB-Pub-94/174-A, Figures available by anonymous ftp in oddjob.uchicago.edu:/pub/bbnrev/fig?.ps (?=1,2,3,4,5,6) or email from copi@oddjob.uchicago.edu REVISIONS include new discussion and a new figure",
  "journal": "Science 267 (1995) 192-199",
  "doi": "10.1126/science.7809624",
  "categories": [
    "astro-ph"
  ],
  "abstract": "Big-bang nucleosynthesis is one of the cornerstones of the standard cosmology. For almost thirty years its predictions have been used to test the big-bang model to within a fraction of a second of the bang. The concordance that exists between the predicted and observed abundances of D, $^3$He, $^4$He and $^7$Li provides important confirmation of the standard cosmology and leads to the most accurate determination of the baryon density, between $1.7 \\times 10^{-31}\\gcmm3$ and $4.1\\times 10^{-31}\\gcmm3$ (corresponding to between about 1\\% and 14\\% of critical density). This measurement of the density of ordinary matter is crucial to almost every aspect of cosmology and is pivotal to the establishment of two dark-matter problems: (i) most of the baryons are dark, and (ii) if the total mass density is greater than about 14\\% of the critical density as many determinations now indicate, the bulk of the dark matter must be ``nonbaryonic,'' comprised of elementary particles left from the earliest moments. We critically review the present status of primordial nucleosynthesis and discuss future prospects.",
  "revisions": [
    {
      "version": "v2",
      "updated": "1994-07-07T20:00:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "baryon density",
      "big-bang nucleosynthesis",
      "standard cosmology",
      "elementary particles left",
      "total mass density"
    ],
    "tags": [
      "journal article",
      "famous paper"
    ],
    "publication": {
      "journal": "Science",
      "year": 1995,
      "month": "Jan",
      "volume": 267,
      "number": 5195,
      "pages": 192
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 21,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 38472,
      "adsabs": "1995Sci...267..192C"
    }
  }
}