Measurement and Interpretation of Fermion-Pair Production at LEP energies above the Z Resonance

Physics – High Energy Physics – High Energy Physics - Experiment

Scientific paper

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79 pages, 16 figures, Accepted by Eur. Phys. J. C

Scientific paper

10.1140/epjc/s2005-02461-0

This paper presents DELPHI measurements and interpretations of cross-sections, forward-backward asymmetries, and angular distributions, for the e+e- -> ffbar process for centre-of-mass energies above the Z resonance, from sqrt(s) ~ 130 - 207 GeV at the LEP collider. The measurements are consistent with the predictions of the Standard Model and are used to study a variety of models including the S-Matrix ansatz for e+e- -> ffbar scattering and several models which include physics beyond the Standard Model: the exchange of Z' bosons, contact interactions between fermions, the exchange of gravitons in large extra dimensions and the exchange of sneutrino in R-parity violating supersymmetry.

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