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Measurement and interpretation of fermion-pair production at LEP energies from 130 to 172 GeV

  • The DELPHI Collaboration
  • P. Abreu et al.
Experimental physics

Abstract.

The data collected with the DELPHI detector at centre-of-mass energies between 130 and 172 GeV, during LEP operation in 1995 and 1996, have been used to determine the hadronic and leptonic cross-sections and leptonic forward–backward asymmetries. In addition, the cross-section ratios and forward–backward asymmetries for flavour-tagged samples of light (uds), c and b quarks have been measured. No significant deviations from the Standard Model expectations are found. The results are interpreted by performing S-matrix fits to these data and to the data collected previously at the energies near the \({\rm Z}^0\) resonance peak (88-93 GeV). The results are also interpreted in terms of physics beyond the Standard Model: contact interactions, R-parity violating SUSY particle exchange and of possible Z\(^{'}\) bosons.

Keywords

Resonance Peak Contact Interaction Particle Exchange SUSY Particle Model Expectation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • The DELPHI Collaboration
  • P. Abreu et al.
    • 1
  1. 1.LIP, IST, FCUL - Av. Elias Garcia, 14-1°, 1000 Lisboa Codex, Portugal PT

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