{
  "id": "0804.0422",
  "version": "v1",
  "published": "2008-04-02T19:52:08.000Z",
  "updated": "2008-04-02T19:52:08.000Z",
  "title": "Global Analysis of Helicity Parton Densities and Their Uncertainties",
  "authors": [
    "Daniel de Florian",
    "Rodolfo Sassot",
    "Marco Stratmann",
    "Werner Vogelsang"
  ],
  "comment": "4 pages, 3 figures",
  "journal": "Phys.Rev.Lett.101:072001,2008",
  "doi": "10.1103/PhysRevLett.101.072001",
  "categories": [
    "hep-ph"
  ],
  "abstract": "We present a new analysis of the helicity parton distributions of the nucleon. The analysis takes into account the available data from inclusive and semi-inclusive polarized deep inelastic scattering, as well as from polarized pp scattering at RHIC. For the first time, all theoretical calculations are performed fully at next-to-leading order (NLO) of perturbative QCD, using a method that allows to incorporate the NLO corrections in a very fast and efficient way in the analysis. We find evidence for a rather small gluon polarization in the nucleon, over a limited region of momentum fraction, and for interesting flavor patterns in the polarized sea.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2008-04-02T19:52:08.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.88.+e",
      "13.60.Hb",
      "13.85.Ni",
      "12.38.Bx"
    ],
    "keywords": [
      "helicity parton densities",
      "global analysis",
      "polarized deep inelastic scattering",
      "uncertainties",
      "helicity parton distributions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2008,
      "month": "Aug",
      "volume": 101,
      "number": 7,
      "pages": "072001"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 782617,
      "adsabs": "2008PhRvL.101g2001D"
    }
  }
}