Fermion-pair Production above the Z and Search for New Phenomena

Details Fermion-pair Production above the Z and Search for New Phenomena Fermion-pair Production above the Z and Search for New Phenomena

1998-06-25

arxiv.org/abs/hep-ex/9806027v1

Proceedings ed. by J.Tran Thanh Van, Edition Frontiers, Paris, 1999, page 139.

Physics

High Energy Physics

High Energy Physics - Experiment

6 pages, 3 figures, 2 tables, presented at the XXXIInd Rencontres de Moriond, Electroweak Interactions and Unified Theories, L

Scientific paper

A review of the measurements of hadron, flavour-tagged and lepton-pair production cross-sections and lepton-pair forward-backward asymmetries performed by the four LEP experiments ALEPH, DELPHI, L3 and OPAL at energies between 130 and 183 GeV is given. All 183 GeV results are preliminary. The searches by the four collaborations for new physics phenomena like contact interactions and compositeness, exchange of R-parity violating sneutrinos or squarks, leptoquarks or additional heavy gauge bosons Z' are summarized. No evidence for deviations from the Standard Model expectations is found and new or improved limits are derived.

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