{
  "id": "hep-ex/9910071",
  "version": "v1",
  "published": "1999-11-01T17:00:10.000Z",
  "updated": "1999-11-01T17:00:10.000Z",
  "title": "Nuclear Effects on R = sigma_L / sigma_T in Deep-Inelastic Scattering",
  "authors": [
    "K. Ackerstaff"
  ],
  "comment": "9 pages of latex, 5 figures",
  "journal": "Phys.Lett.B475:386-394,2000; Erratum-ibid.B567:339-346,2003",
  "doi": "10.1016/S0370-2693(99)01493-8",
  "categories": [
    "hep-ex"
  ],
  "abstract": "Cross section ratios for deep-inelastic scattering from 14N and 3He with respect to 2H have been measured by the HERMES experiment at DESY using a 27.5 GeV positron beam. The data cover a range in the Bjorken scaling variable x between 0.013 and 0.65, while the negative squared four-momentum transfer Q^2 varies from 0.5 to 15 GeV^2. The data are compared to measurements performed by NMC, E665, and SLAC on 4He and 12C, and are found to be different for x < 0.06 and Q^2 < 1.5 GeV^2. The observed difference is attributed to an A-dependence of the ratio R = sigma_L / sigma_T of longitudinal to transverse deep-inelastic scattering cross sections at low x and low Q^2.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-11-01T17:00:10.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "13.60.Hb",
      "13.60.-r",
      "24.85.+p",
      "12.38.-t"
    ],
    "keywords": [
      "nuclear effects",
      "transverse deep-inelastic scattering cross sections",
      "cross section ratios",
      "gev positron beam",
      "squared four-momentum transfer"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "LaTeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 509396
    }
  }
}