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

Abreu, P.;Cortina Gil, Eduardo;DELPHI Collaboration;et.al.
(1999) European Physical Journal C. Particles and Fields — Vol. 11, n° 3, p. 383-407 (1999)

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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 Z0 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.
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Abreu, P., Cortina Gil, E., DELPHI Collaboration, & et al. (1999). Measurement and interpretation of fermion pair production at LEP energies from 130-GeV to 172-GeV. European Physical Journal C. Particles and Fields, 11(3), 383-407. https://doi.org/10.1007/s100520050643 (Original work published 1999)