{
  "id": "hep-ex/9708040",
  "version": "v1",
  "published": "1997-08-28T12:32:25.000Z",
  "updated": "1997-08-28T12:32:25.000Z",
  "title": "Asymmetries Between the Production of Ds- and Ds+ Mesons from 500 GeV/c pi- Nucleon Interactions as Functions of x_F and square of p_t",
  "authors": [
    "E791 Collaboration"
  ],
  "comment": "Latex file (11 pages) and three eps files for figures This paper has been accepted for publication by Physics Letters B",
  "journal": "Phys.Lett.B411:230-236,1997",
  "doi": "10.1016/S0370-2693(97)00952-0",
  "categories": [
    "hep-ex"
  ],
  "abstract": "This paper presents measurements of the production of Ds- mesons relative to Ds+ mesons as functions of x_F and square of p_t for a sample of 2445 Ds decays to phi pi. The Ds mesons were produced in Fermilab experiment E791 with 500 GeV/c pi- mesons incident on one platinum and four carbon foil targets. The acceptance-corrected integrated asymmetry in the x_F range -0.1 to 0.5 for Ds+- mesons is 0.032 +- 0.022 +- 0.022, consistent with no net asymmetry. The results, as functions of x_F and square of p_t, are compared to predictions and to the large production asymmetry observed for D+- mesons in the same experiment. These comparisons support the hypothesis that production asymmetries come from the fragmentation process and not from the charm quark production itself.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1997-08-28T12:32:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "nucleon interactions",
      "fermilab experiment e791",
      "large production asymmetry",
      "production asymmetries come",
      "carbon foil targets"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 447720
    }
  }
}