{
  "id": "0711.2557",
  "version": "v1",
  "published": "2007-11-16T05:12:31.000Z",
  "updated": "2007-11-16T05:12:31.000Z",
  "title": "Global NLO Analysis of Nuclear Parton Distribution Functions",
  "authors": [
    "M. Hirai",
    "S. Kumano",
    "T. -H. Nagai"
  ],
  "comment": "3 pages, LaTeX, 4 eps files, to be published in the AIP proceedings of the 9th International Workshop on Neutrino Factories, Superbeams and Betabeams (NuFact07), Okayama, Japan, August 6 - 11, 2007. A code for calculating our nuclear parton distribution functions and their uncertainties can be obtained from http://research.kek.jp/people/kumanos/nuclp.html",
  "journal": "AIPConf.Proc.981:265-267,2008",
  "doi": "10.1063/1.2898955",
  "categories": [
    "hep-ph",
    "hep-ex",
    "nucl-ex",
    "nucl-th"
  ],
  "abstract": "Nuclear parton distribution functions (NPDFs) are determined by a global analysis of experimental measurements on structure-function ratios F_2^A/F_2^{A'} and Drell-Yan cross section ratios \\sigma_{DY}^A/\\sigma_{DY}^{A'}, and their uncertainties are estimated by the Hessian method. The NPDFs are obtained in both leading order (LO) and next-to-leading order (NLO) of \\alpha_s. As a result, valence-quark distributions are relatively well determined, whereas antiquark distributions at x>0.2 and gluon distributions in the whole x region have large uncertainties. The NLO uncertainties are slightly smaller than the LO ones; however, such a NLO improvement is not as significant as the nucleonic case.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-11-16T05:12:31.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.60.Hb",
      "24.85.+p",
      "12.38.-t",
      "25.30.-c",
      "14.60.Pq",
      "25.75.-q"
    ],
    "keywords": [
      "nuclear parton distribution functions",
      "global nlo analysis",
      "drell-yan cross section ratios",
      "uncertainties",
      "hessian method"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "AIP",
      "journal": "AIP Conf. Proc."
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 3,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 767873,
      "adsabs": "2008AIPC..981..265H"
    }
  }
}