{
  "id": "hep-ph/9905565",
  "version": "v1",
  "published": "1999-05-31T13:30:41.000Z",
  "updated": "1999-05-31T13:30:41.000Z",
  "title": "Contact Interactions: Results from ZEUS and a Global Analysis",
  "authors": [
    "Aleksander Filip Zarnecki"
  ],
  "comment": "4 pages, 3 figures, 1 table. Presented at DIS99, Zeuthen, Germany, April 19-23, 1999",
  "journal": "Nucl.Phys.Proc.Suppl. 79 (1999) 158-161",
  "doi": "10.1016/S0920-5632(99)00662-3",
  "categories": [
    "hep-ph"
  ],
  "abstract": "In a search for signatures of physics processes beyond the Standard Model, various eeqq vector contact interaction hypotheses have been tested in the ZEUS experiment. No significant evidence of a contact interaction signal has been found. The analysis is based on NC e+p DIS data corresponding to an integrated luminosity of 47.7 pb-1 and results in 95% CL limits on the effective mass scales Lambda ranging from 1.7 to 5 TeV for the different one-parameter contact interaction scenarios considered. Within the global analysis, including data from other experiments as well, any contact interactions with mass scale below 2.1 TeV are excluded at 95% CL. Combined mass scale limits for specific one-parameter scenarios range from 5.1 to 18 TeV. Upper limits on possible effects to be observed in future HERA, LEP and Tevatron running are estimated. The total hadronic cross-section at LEP and e-p scattering cross-section at HERA are strongly constrained by existing data, whereas large cross-section deviations are still possible for Drell-Yan lepton pair production at the Tevatron.",
  "revisions": [
    {
      "version": "v1",
      "updated": "1999-05-31T13:30:41.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "global analysis",
      "mass scales lambda ranging",
      "eeqq vector contact interaction hypotheses",
      "one-parameter contact interaction scenarios",
      "drell-yan lepton pair production"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 500846
    }
  }
}