Study of Fermion pair production in e+e- collisions at 130-183 GeV

Details Study of Fermion pair production in e+e- collisions at 130-183 GeV Study of Fermion pair production in e+e- collisions at 130-183 GeV

1999-04-09

arxiv.org/abs/hep-ex/9904011v1

Eur.Phys.J.C12:183-207,2000

Physics

High Energy Physics

High Energy Physics - Experiment

43 pages, 18 figures

Scientific paper

10.1007/s100529900223

The cross sections and forward-backward asymmetries of hadronic and leptonic events produced in e+e- collisions at centre-of-mass energies of 130-183 GeV are presented. Results for ee, mumu, tautau, qq, bb and cc production show no significant deviation from the Standard Model predictions. This enable constraints to be set upon physics beyond the Standard Model such as four-fermion contact interactions, leptoquarks, Z' bosons and R-parity violating squarks and sneutrinos. Limits on the energy scale Lambda of eeff contact interactions are typically in the range from 2-10 TeV. Limits on R-parity violating sneutrinos reach masses of a few hundred GeV for large values of their Yukawa couplings.

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